お手軽ACNS問題集PDFのベスト問題集を使おう！高得点目指すならここ [Q105-Q128]

お手軽ACNS問題集PDFのベスト問題集を使おう！高得点目指すならここ

Nursing ANCC ACNS試験と認定テストエンジン

質問 # 105
A hold order may be ordered for patients on insulin therapy if the glucose threshold is what?

• A. <105 mg/dL.
• B. <100 mg/dL.
• C. <110 mg/dL.
• D. <115 mg/dL.

正解：B

解説：
*In the context of diabetes management, particularly for patients on insulin therapy, a "hold order" is a directive used in clinical settings to temporarily stop insulin administration under specific circumstances. This protocol is crucial to prevent hypoglycemia, a condition where blood glucose levels drop too low, posing serious health risks to the patient. Hypoglycemia can cause symptoms such as shaking, confusion, dizziness, or even more severe complications like loss of consciousness or seizures. *
*Insulin, while essential for controlling high blood sugar, can sometimes lower glucose levels excessively. To mitigate this risk, medical professionals set glucose thresholds that trigger a hold on insulin administration. If a patient's blood glucose level falls below this predefined threshold, insulin doses are withheld to allow glucose levels to stabilize and prevent further drop. *
*The threshold for a hold order can vary based on the patient's individual health profile, the type of insulin being used, and other factors. However, it is commonly set at less than 100 mg/dL. This level is chosen based on clinical guidelines and empirical evidence which suggest that glucose levels below 100 mg/dL increase the risk for hypoglycemia, especially if trending downwards. *
*It is important for healthcare providers to closely monitor blood glucose levels in patients receiving insulin therapy and adjust the treatment protocol as necessary. This includes issuing hold orders when appropriate to safeguard against hypoglycemia, thus balancing the need to manage high blood sugar with the risk of pushing glucose too low. Regular review and adjustment of the glucose threshold for hold orders ensure that the management of diabetes remains both effective and safe.

質問 # 106
After thoroughly assessing your 31-year-old patient, you determine he requires a Tumor Necrosis Factor Inhibitor to treat his musculoskeletal disorder. Which of these would you NOT prescribe?

• A. Infliximab.
• B. Adalimumab.
• C. Piroxicam.
• D. Etanercept.

正解：C

解説：
The question asks which medication among the listed options should not be prescribed if a Tumor Necrosis Factor (TNF) Inhibitor is required for a patient's treatment. To address this question, it is essential to understand the classification and therapeutic use of each listed drug.
Piroxicam is a nonsteroidal anti-inflammatory drug (NSAID). NSAIDs are primarily used to treat inflammation, mild to moderate pain, and fever. Importantly, unlike TNF inhibitors, NSAIDs do not specifically target TNF-alpha, a cytokine that plays a key role in the inflammatory process. Therefore, while piroxicam can be useful for symptomatic relief in musculoskeletal disorders, it does not manage the underlying disease mechanisms in conditions where TNF-alpha inhibition is specifically required.
Adalimumab, infliximab, and etanercept, on the other hand, are all TNF inhibitors. These medications are used to treat autoimmune diseases such as rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis, and other inflammatory conditions where TNF-alpha plays a significant pathogenic role. By inhibiting TNF-alpha, these drugs help reduce inflammation, thereby managing both symptoms and progression of the disease.
Adalimumab is a monoclonal antibody that binds to TNF-alpha, neutralizing its activity. Infliximab is another monoclonal antibody that works similarly but is administered intravenously. Etanercept is a fusion protein that also inhibits TNF-alpha but is structurally different from the monoclonal antibodies.
Given that the patient needs a TNF inhibitor, the correct choice of medication would be either adalimumab, infliximab, or etanercept, as all these drugs directly target and inhibit the activity of TNF-alpha, addressing the underlying pathophysiology of the disease.
Therefore, piroxicam, being an NSAID and not a TNF inhibitor, would not be appropriate for the specific treatment requirement of inhibiting TNF-alpha. It would not effectively manage the disease at the level required by the patient's condition, making it the correct answer to the question of which drug you would not prescribe.

質問 # 107
Which of the following is NOT an appropriate serving size of fruit for a person on the ADA diet?

• A. 2 Tbsp raisins.
• B. 1 c apple juice.
• C. 2 plums.
• D. ½ c unsweetened canned fruit.

正解：B

解説：
The question is asking which fruit serving size is not appropriate for someone following the American Diabetes Association (ADA) diet. The correct answer is "1 cup of apple juice." The ADA diet is tailored to help individuals manage their blood sugar levels, and thus, portion control is a critical aspect of this diet. It's important to understand that different forms of fruits have different impacts on blood sugar levels. Whole fruits contain fiber, which helps slow down the digestion process and the release of sugar into the bloodstream, making them a healthier choice in appropriate portions.
In contrast, fruit juices, such as apple juice, lack fiber and are more concentrated sources of sugar and calories. Consequently, they can lead to quicker and higher spikes in blood sugar levels. According to ADA guidelines, if fruit juice is consumed, it should be limited to a smaller serving size because of its higher sugar content and lack of fiber. Specifically, the ADA recommends that servings of juice should not exceed 1/2 cup. This is because a full cup of fruit juice can contain the sugar equivalent of several pieces of whole fruit, without the beneficial fiber.
The other options provided - "2 plums," "½ cup unsweetened canned fruit," and "2 tablespoons of raisins" - are generally considered appropriate serving sizes for someone on the ADA diet. These options contain fiber (to varying extents), are more filling, and have a slower impact on blood sugar levels compared to a full cup of fruit juice.
Thus, "1 cup apple juice" is the correct answer as it is not an appropriate serving size for someone managing their diet according to ADA guidelines. To adhere to the ADA diet, it's recommended to consume whole fruits in appropriate portions and limit the intake of fruit juices, especially in larger quantities like a full cup.

質問 # 108
The CNS is assessing a patient whom he believes has early signs of pneumoni a. To confirm his diagnosis, he should order what?

• A. A Chest X-ray.
• B. A urine analysis.
• C. Pulmonary function test.
• D. Electrocardiogram (ECG).

正解：A

解説：
When a Clinical Nurse Specialist (CNS) identifies potential early signs of pneumonia in a patient, the most appropriate diagnostic test to confirm this suspicion is a chest X-ray. Pneumonia is an infection that inflames the air sacs in one or both lungs, which can fill with fluid or pus, causing symptoms such as cough, fever, chills, and difficulty breathing.
While initial assessments might include a thorough physical examination, where the CNS listens for abnormal lung sounds, or lab tests such as a complete blood count (CBC) or blood cultures, these methods alone cannot confirm pneumonia. An electrocardiogram (ECG) is primarily used to assess the heart's function and is not suitable for diagnosing lung issues. Similarly, pulmonary function tests, which measure the lungs' ability to move air in and out, are not diagnostic tools for infections and are more relevant in chronic conditions like asthma or COPD. Urine analysis is generally used to detect disorders of the urinary system and to screen for metabolic diseases, not respiratory infections.
A chest X-ray, on the other hand, is a highly valuable tool in the diagnosis of pneumonia. It allows the CNS and other healthcare professionals to visually confirm the presence of fluid or pus in the lungs, which are indicative of pneumonia. The imaging can reveal areas of opacity (white spots) where the infection has developed, which is critical for accurate diagnosis and effective treatment planning. In some cases, further imaging with a CT scan might be recommended if the X-ray results are inconclusive or if complications are suspected.
Therefore, if a CNS suspects a patient has pneumonia based on preliminary evaluation, the most definitive next step is to order a chest X-ray. This will not only confirm the presence of pneumonia but also help in assessing the extent of the lung involvement, which is crucial for determining the severity of the infection and guiding appropriate therapy.

質問 # 109
Which of the following is true regarding current factors that support the greater emphasis on health promotion and disease prevention?

• A. Tobacco use, substance use, and obesity are considered some of the leading health indicators.
• B. Only 20% of illness and disease is related to lifestyle and unhealthy decisions.
• C. Healthy People 2020 was developed as a outline of prevention agenda by the American Nurses Association.
• D. Preventive services include treating active diseases that could spread out into the community.

正解：A

解説：
Among the statements presented, the correct one that reflects current factors supporting greater emphasis on health promotion and disease prevention is: "Tobacco use, substance use, and obesity are considered some of the leading health indicators. It is reported that 50% of illness and disease is related to lifestyle and unhealthy decisions. Healthy People 2020 is the prevention agenda for the nation as outlined by the federal government through the U.S. Department of Health. Preventive services are infant care, immunizations, and sexually transmitted disease services, not the treatment of active disease states." This statement is true and reflects accurately the focus of contemporary health promotion and disease prevention strategies. First, identifying tobacco use, substance use, and obesity as leading health indicators is consistent with extensive research showing these factors contribute significantly to preventable illnesses and premature death. These indicators are used to prioritize public health actions aimed at reducing their prevalence and mitigating their effects.
The statement also correctly notes that about 50% of illnesses and diseases are related to lifestyle and unhealthy decisions. This highlights the importance of behavior in health outcomes and supports the rationale for focusing on lifestyle modifications as a critical component of disease prevention strategies. This statistic underlines the potential impact of effective health promotion activities, which can significantly reduce the burden of disease by encouraging healthier living choices.
Healthy People 2020, referenced in the statement, indeed serves as the prevention agenda set by the U.S. Department of Health and Human Services. This initiative outlines specific objectives aimed at improving health across various domains and demographics. Its goals are rooted in evidence-based practices and data-driven priorities that address both the direct and indirect costs of preventable diseases.
Moreover, the differentiation between preventive services and the treatment of active disease states is an important distinction in the context of public health strategies. Preventive services like infant care, immunizations, and management of sexually transmitted diseases aim to prevent health problems before they occur, which is distinct from treating diseases after they have developed. This approach not only helps reduce healthcare costs but also aims to improve the quality of life for individuals and communities.
Therefore, the statement selected provides a comprehensive overview of why there is an increased emphasis on health promotion and disease prevention today, highlighting the role of lifestyle factors, the objectives of national health agendas like Healthy People 2020, and the focus on preventive services over mere treatment of diseases.

質問 # 110
At what point should a chest tube be removed?

• A. mid expiration.
• B. end of expiration.
• C. maximal inspiration.
• D. beginning of expiration.

正解：C

解説：
A chest tube, which is typically used to remove air, fluids, or pus from the intrathoracic space, should be removed at a specific point in the respiratory cycle to minimize the risk of complications, such as a pneumothorax (air trapped in the pleural space). The optimal time for chest tube removal is generally considered to be during maximal inspiration.
Maximal inspiration refers to the point in the breathing cycle where the lungs are fully expanded. At this stage, the intrapleural pressure is at its highest, which helps in reducing the potential space between the lung and the chest wall. By removing the chest tube during this phase, the likelihood of air entering the pleural space (which could lead to a pneumothorax) is minimized. Essentially, the lungs are in their most expanded state and better able to seal any potential pathways that could allow air to enter the pleural cavity once the tube is removed.
The technique typically involves instructing the patient to take a deep breath and hold it (if the patient is cooperative and able to follow commands) or coordinating with mechanical ventilation in sedated or unconscious patients. During this held breath, the chest tube is clamped, cut, and quickly sealed with an occlusive dressing. This method aims to maintain the negative pressure in the pleural space that exists naturally during inspiration, thereby preventing the reintroduction of air.
It is crucial for healthcare providers to follow specific protocols and use careful technique when removing a chest tube to ensure patient safety and the best possible outcomes. Monitoring after the removal is equally important to ensure that complications do not develop, such as re-accumulation of air or fluid, which could necessitate reinsertion of the chest tube.

質問 # 111
Lead screening during well-child examinations and cholesterol screening for adults are both examples of what type of prevention?

• A. quaternary
• B. tertiary
• C. primary
• D. secondary

正解：D

解説：
The correct answer to the question regarding the type of prevention exemplified by lead screening during well-child examinations and cholesterol screening for adults is "secondary prevention." This category of prevention is crucial in the healthcare field as it focuses on the early detection and timely intervention of diseases, which can prevent the progression of a condition and mitigate adverse outcomes.
Secondary prevention operates during the subclinical stage of a disease, which means that the disease is present but not yet symptomatic or fully developed. This stage provides a critical opportunity for healthcare professionals to intervene and prevent the disease from advancing. For example, lead screening in children is intended to catch lead poisoning before it causes significant health issues like developmental delays or learning disabilities. Similarly, cholesterol screening in adults aims to identify elevated cholesterol levels early, which can lead to preventive measures against cardiovascular diseases such as heart attacks or strokes.
The goal of secondary prevention is not just to detect the disease early, but also to implement measures that can reduce its impact or severity. This might include medication, lifestyle changes, or more frequent monitoring. By catching problems at a stage when they are more manageable, secondary prevention can significantly improve patient outcomes and reduce the need for more intensive treatments that might be required at later stages.
In contrast, primary prevention involves strategies to prevent the onset of disease before it occurs. This can include vaccinations, enforcing safe work practices, or promoting healthy diets and exercise. Tertiary prevention, on the other hand, deals with reducing the impact of ongoing illness that has lasting effects, such as rehabilitation for stroke patients and ongoing management and care for chronic diseases. Quaternary prevention aims to prevent overmedicalization and the negative effects of unnecessary health interventions.
Understanding these distinctions is crucial for effective health management and policy-making. Each level of prevention plays a unique role in the healthcare system, contributing to the overall health and well-being of the population. Secondary prevention, as demonstrated by lead and cholesterol screenings, serves as a bridge between the proactive measures of primary prevention and the responsive strategies of tertiary care, optimizing health outcomes by addressing diseases early in their development.

質問 # 112
You are treating your patient with a 5HT4 agonist for his gastrointestinal disorder. Of the following, which would you prescribe?

• A. Tegaserod.
• B. Alosetron.
• C. Cisapride.
• D. Senna.

正解：A

解説：
To address the question of which medication to prescribe for a patient's gastrointestinal disorder using a 5HT4 agonist, it is essential to understand the pharmacological role of each option listed. Here is an expanded explanation of the drug choices provided:
Tegaserod: This medication is a 5HT4 agonist and is used specifically to treat certain gastrointestinal disorders, particularly those associated with symptoms of irritable bowel syndrome (IBS) predominantly featuring constipation. Tegaserod works by enhancing the release of neurotransmitters that increase the movement of the intestines, thereby promoting bowel movements and alleviating constipation. Due to its mechanism of action targeting the 5HT4 receptor, tegaserod is the correct choice when a 5HT4 agonist is indicated for gastrointestinal issues.
Senna: Senna is categorized as a stimulant laxative. It operates by stimulating the muscles in the intestines, which helps to facilitate the movement of stool through the bowel. Though effective for constipation, Senna does not function as a 5HT4 agonist and therefore does not fit the requirement for the medication needed in this scenario.
Cisapride: Previously used as a promotility agent, Cisapride enhances the release of acetylcholine at the myenteric plexus, which stimulates gastrointestinal motility and accelerates gastric emptying. It acts on serotonin receptors, but its primary action is not on the 5HT4 receptor. Furthermore, due to concerns about serious cardiac side effects, its availability is highly restricted in many countries.
Alosetron: This medication is a 5HT3 antagonist used primarily to manage severe diarrhea-predominant irritable bowel syndrome (IBS) in women. By blocking the 5HT3 receptors, alosetron slows the movement of stools through the intestines, which is the opposite effect of what is typically desired with a 5HT4 agonist. Therefore, alosetron is not suitable for the requirement of a 5HT4 agonist.
In conclusion, for a patient needing a 5HT4 agonist for treating a gastrointestinal disorder, Tegaserod is the appropriate prescription among the options listed. It directly targets the 5HT4 receptors and is effective in enhancing gut motility, specifically in cases related to constipation-predominant IBS. Other drugs listed either do not target the 5HT4 receptor or have different primary indications and mechanisms of action that do not align with the therapeutic needs specified.

質問 # 113
You are conducting an assessment with a patient and notice several flat, colored areas on the skin. These are not large, nor are they raised or textured. These should be charted as which of the following?

• A. Pustules.
• B. Macules.
• C. Plaques.
• D. Papules.

正解：B

解説：
When observing skin conditions, it is essential to correctly identify and chart the types of lesions present. In the scenario described, the skin features observed are flat, colored areas that are not raised or textured. These characteristics fit the description of macules.
Macules are defined as flat spots on the skin that are distinctly different in color from the surrounding skin. They are usually less than 1 centimeter in diameter and can be of any color. Macules are a common type of skin lesion and can be a result of various factors, including genetic conditions, pigmentary disorders, infections, or inflammatory processes.
It is crucial to differentiate macules from other types of skin lesions such as papules, plaques, and pustules. Papules are small, raised lesions that are usually less than 1 centimeter in diameter. Unlike macules, papules are palpable above the surface of the skin. Plaques are larger than 1 centimeter and are also raised, often forming from a confluence of papules. Pustules are similar to papules but contain pus.
Given these descriptions, the correct way to chart the observed skin features in the question is as macules. This is because they match the definition of being small, flat, and colored without any elevation or textural change. Accurate documentation of such findings is crucial in the medical field for proper diagnosis, treatment, and monitoring of skin conditions.

質問 # 114
The cleansing of the stomach with solution delivered through a nasogastric tube is known as what?

• A. Lavage.
• B. Gavage.
• C. Emesis.
• D. Stomach pumping.

正解：A

解説：
The cleansing of the stomach using a solution delivered through a nasogastric tube is known as gastric lavage, commonly referred to as stomach pumping. This medical procedure is primarily used to remove ingested poisons, an overdose of medication, or other harmful substances from a patient's stomach.
During gastric lavage, a flexible tube is inserted through the nose, down the esophagus, and into the stomach. Once the tube is correctly positioned, a saline solution or water is funneled into the stomach. This solution mixes with the stomach contents and is then removed by suction through the same tube. The process may be repeated several times until the effluent (the liquid removed from the stomach) is clear, indicating that the stomach has been thoroughly cleansed.
Gastric lavage must be performed soon after the ingestion of the toxic substance, typically within a few hours, as its effectiveness decreases significantly once the substance has moved beyond the stomach into the intestines. The procedure is only carried out when the benefits outweigh the potential risks, such as aspiration, esophageal perforations, or electrolyte imbalances.
It is crucial for this procedure to be performed by medical professionals in a controlled environment, such as a hospital, where the patient's vital signs can be continuously monitored, and immediate care can be provided in case of complications. Gastric lavage is not suitable for all cases of poisoning or overdose and should only be considered when specifically recommended by healthcare professionals.

質問 # 115
Of the following nursing models, which one addresses health promotion and suits the practice of the Adult Clinical Nurse Specialist?

• A. Neuman's Health Care Systems Model
• B. Watson's Human Science and Human Model of Caring
• C. Pender' Health Promotion Model
• D. King's Interacting Systems Model

正解：C

解説：
The Pender Health Promotion Model is a theoretical framework designed to guide nurses in the development of strategies aimed at improving patient well-being and health outcomes. Developed by Dr. Nola J. Pender, this model emphasizes the role of individual experiences, behaviors, and interactions in health promotion. This model is particularly relevant to the practice of an Adult Clinical Nurse Specialist (CNS) because it aligns closely with their focus on preventive care and health education.
An Adult Clinical Nurse Specialist is a highly skilled and educated nursing professional who specializes in a specific area of adult health. Their role involves not only managing patient care but also focusing on improving healthcare delivery systems, educating patients and their families, and implementing evidence-based practices. The CNS often takes a holistic approach that incorporates both acute care management and preventive strategies to optimize health outcomes.
Pender's Health Promotion Model is centered around the concept that health is not merely the absence of disease but a dynamic process of achieving higher levels of wellness. The model outlines several factors that influence health behaviors, including individual characteristics and experiences, behavior-specific cognitions and affect, and behavioral outcomes. This makes it an excellent tool for CNSs, as it provides a structured way to understand and influence the multiple dimensions of patient health.
In comparison, other nursing models like Neuman's Health Care Systems Model, King's Interacting Systems Model, and Watson's Human Science and Human Model of Caring, while valuable, focus more broadly on systemic or relational aspects of care. These models are useful in their own rights but do not specifically target health promotion with the same explicitness as Pender's model.
Therefore, for an Adult Clinical Nurse Specialist, whose primary concerns include health promotion and disease prevention, Pender's Health Promotion Model is especially appropriate. It supports the CNS's aims to foster behaviors that improve health and prevent illness through a deeper understanding of what motivates individuals to engage in health-promoting practices. This alignment makes Pender's model not only relevant but also a practical choice in guiding the CNS's interventions and patient interactions toward successful health outcomes.

質問 # 116
A 55-year-old female has been diagnosed with Barrett's esophagus, a precancerous condition. The ACCRN understands that all of the following are risk factors for this condition except:

• A. African-American race
• B. age
• C. male sex
• D. GERD symptoms of over 10 years

正解：A

解説：
Barrett's esophagus is a condition where the tissue lining the esophagus undergoes changes, becoming similar to the tissue that lines the intestine. This change, known as intestinal metaplasia, is significant because it increases the risk of developing esophageal adenocarcinoma, a type of cancer. The transformation typically occurs in response to chronic irritation from stomach acids, a condition commonly seen in individuals with gastroesophageal reflux disease (GERD).
One of the primary risk factors for developing Barrett's esophagus is having long-standing GERD. Individuals who have experienced GERD symptoms for over 10 years have a significantly higher risk because the prolonged exposure to acid can cause more damage and changes to the esophagus. This prolonged reflux is thought to increase the likelihood of the esophageal cells undergoing the abnormal changes seen in Barrett's esophagus.
Other well-established risk factors include age, with older adults being more commonly affected, and ethnicity, with Caucasian individuals having a higher incidence rate compared to other races. Additionally, Barrett's esophagus is more commonly diagnosed in males than in females, making male sex another risk factor for this condition.
In contrast, being of African-American ethnicity is not considered a risk factor for Barrett's esophagus. Studies and clinical observations have shown that African-American individuals have a lower incidence of Barrett's esophagus compared to Caucasian individuals. The reasons for these racial differences in incidence are not completely understood but are thought to involve a combination of genetic, environmental, and lifestyle factors.
In summary, the major risk factors for Barrett's esophagus include having long-term GERD, being older in age, being of Caucasian ethnicity, and being male. African-American race, however, is not a risk factor for the development of Barrett's esophagus, and in fact, this group tends to have a lower risk compared to Caucasians. Understanding these risk factors is crucial for early identification and management of individuals at risk of progressing to Barrett's esophagus and potentially esophageal cancer.

質問 # 117
You are conducting an abdominal assessment on a patient. During palpation, the patient complains that she is experiencing pain when you release pressure, though not during the palpation itself. This is known as what?

• A. Rebound pain.
• B. Phantom pain.
• C. Quadrant pain.
• D. Release pain.

正解：A

解説：
The correct answer to the question is "Rebound pain." Rebound pain is a specific type of discomfort that is experienced when pressure applied to the abdomen is suddenly released. Unlike tenderness, which is felt when pressure is applied, rebound pain occurs during the quick withdrawal of that pressure.
This clinical finding is significant and can be indicative of peritoneal irritation. The peritoneum is a membrane that lines the abdominal cavity and covers most of the abdominal organs. Inflammation of this membrane, often due to conditions like appendicitis or other types of peritonitis, can cause the parietal layer of the peritoneum to become very sensitive. The mechanism behind rebound pain involves the sudden movement of these inflamed structures when the pressure is lifted, leading to a sharp, painful sensation.
Rebound pain is an important diagnostic indicator in conditions such as appendicitis, which is an inflammation of the appendix. During a physical examination, a healthcare provider may apply gentle pressure to the area of the abdomen overlying the appendix (typically the lower right quadrant) and then release it. A positive rebound tenderness or pain upon release suggests irritation or inflammation of the peritoneum, warranting further medical evaluation and often urgent treatment.
Identifying rebound pain is crucial as it helps in diagnosing acute abdominal conditions that may require immediate intervention. It is a hallmark of appendicitis but can also be seen in other conditions like diverticulitis, ruptured ovarian cysts, or ectopic pregnancy. Each of these conditions can present serious health threats, making the recognition of rebound pain an important skill in clinical practice.

質問 # 118
A sign of cataracts is:

• A. Copper and silver wire arterioles.
• B. Opacity of the lens.
• C. Optic disc swollen with blurred edges.
• D. Microvascularization and microaneurysms.

正解：B

解説：
A cataract is a medical condition where the lens of the eye becomes progressively opaque, resulting in blurred vision, glare, and difficulty seeing in low light conditions. The lens is a clear, biconvex structure located behind the iris, whose primary role is to focus light onto the retina, allowing us to see clearly. When a cataract develops, the proteins in the lens begin to clump together, clouding the lens and preventing light from passing clearly through it. This clouding is referred to as the opacity of the lens, which is the hallmark sign of cataracts.
The development of cataracts is often related to aging, but can also result from other risk factors such as diabetes, smoking, prolonged exposure to ultraviolet light, and certain genetic predispositions. It is one of the leading causes of blindness worldwide, particularly in older adults. However, vision loss due to cataracts can typically be restored through surgical removal of the cloudy lens and replacement with an artificial lens.
It is important to differentiate the signs of cataracts from other eye conditions that also affect vision. For instance, a swollen optic disc with blurred edges, known as papilledema, is indicative of increased intracranial pressure, not cataracts. Microvascularization and microaneurysms are signs often associated with diabetic retinopathy, a complication of diabetes affecting the retina. Copper and silver wire arterioles are indicative of hypertensive retinopathy, a result of long-standing high blood pressure impacting the retinal vessels.
In summary, while there are many conditions that can affect the eyes, the specific sign of cataracts is the opacity of the lens. Recognizing this sign is critical for timely diagnosis and management, primarily through surgical intervention, which is highly effective in restoring vision.

質問 # 119
The MAST screening tests patients for what disease?

• A. osteoporosis
• B. alcoholism
• C. diabetes mellitus
• D. cataracts

正解：B

解説：
The MAST screening, or the Michigan Alcoholism Screening Test, is specifically designed to help healthcare providers identify individuals who may be suffering from alcoholism. This test consists of a series of questions that the patient answers, which can indicate patterns of alcohol abuse.
The effectiveness of MAST lies in its structured approach to assessing the frequency and impact of alcohol consumption on a person's life. It considers various aspects such as legal issues, social behavior changes, and personal attitude shifts towards alcohol use. By evaluating these responses, the MAST can provide a quantitative measure of alcohol dependency risk, which can be crucial for early intervention.
It's important to note that the MAST is not the only tool available for screening alcoholism. The CAGE questionnaire is another popular method used by healthcare professionals. This tool is shorter and consists of four questions that focus more on the emotional consequences of drinking. While both MAST and CAGE are effective, they serve slightly different purposes and are used based on specific clinical judgments about a patient's condition.
In summary, the MAST screening test is an essential tool in the detection and management of alcoholism, helping to initiate timely healthcare interventions and support systems necessary for individuals struggling with alcohol dependency.

質問 # 120
Of the following which is a promotility agent you'd prescribe for your patient's gastrointestinal disorder?

• A. Alosetron.
• B. Metoclopramide.
• C. Tegaserod.
• D. Senna.

正解：B

解説：
To answer the question about which drug is a promotility agent that could be prescribed for a patient's gastrointestinal disorder, it is essential to understand what each listed medication is typically used for and how they function.
**Metoclopramide:** This is the correct answer to the question. Metoclopramide is a well-known promotility agent used primarily to treat nausea, vomiting, and gastroparesis (delayed gastric emptying). It works by enhancing the motility of the stomach and intestines, which helps speed the movement of food through the gastrointestinal tract. It acts by blocking dopamine receptors and increasing the release of acetylcholine in the gut, which stimulates gastric motility and accelerates gastric emptying. It's often prescribed under the brand name Reglan.
**Senna:** This is not a promotility agent but rather a stimulant laxative. Senna works by irritating the lining of the bowel, which causes a laxative effect. It is primarily used to treat constipation and to clear the bowel before diagnostic tests such as colonoscopy. Senna does not enhance the motility of the upper gastrointestinal tract and thus is not useful as a promotility agent.
**Tegaserod:** This medication is a selective 5-HT4 receptor agonist that was used to treat irritable bowel syndrome (IBS) with constipation and chronic idiopathic constipation. It works by mimicking the action of serotonin at the 5-HT4 receptor, enhancing peristaltic reflex and intestinal secretion, which helps increase gastrointestinal motility. However, it is not typically classified as a promotility agent like Metoclopramide, and its use has been limited due to concerns over cardiovascular side effects.
**Alosetron:** This drug is a selective 5-HT3 receptor antagonist used primarily for the management of severe diarrhea-predominant irritable bowel syndrome (IBS) in women. Alosetron works by blocking serotonin receptors in the gastrointestinal tract, reducing bowel motility, and enhancing absorption. It effectively manages symptoms of IBS but does not promote motility; rather, it slows it down in cases of diarrhea-predominant IBS.
In conclusion, among the options provided, Metoclopramide is the only appropriate promotility agent for treating gastrointestinal disorders that involve delayed gastric emptying or reduced motility. The other listed drugs serve different purposes and act through mechanisms that do not enhance gastrointestinal motility in the way promotility agents like Metoclopramide do.

質問 # 121
The Adult Clinical Nurse Specialist works for an organization that conducts research. The name given to the subjects in a research study who do not have the disease or condition that is being studied, but who are included in the study for comparison are:

• A. controls
• B. placebos
• C. case series
• D. cross sectionals

正解：A

解説：
In clinical research, particularly in studies aiming to ascertain the effectiveness of a treatment or intervention, it's crucial to have a proper comparison group alongside the group receiving the treatment. This comparison group is referred to as "controls." These are individuals who do not have the disease or condition that the primary study group has, or who do not receive the intervention being tested. They are essential for providing a baseline against which the effects of the intervention can be measured.
Controls help researchers understand what changes would have occurred without the intervention. For example, in a clinical trial testing a new drug for diabetes, the control group would consist of participants who either receive a standard treatment for diabetes or a placebo (a substance with no therapeutic effect). This comparison ensures that any differences in outcomes between the control group and the treatment group can be attributed to the intervention itself, rather than other variables.
In contrast, other research terms have different functions: - A **case series** is a type of observational study that involves detailed reporting of symptoms, signs, diagnosis, treatment, and follow-up of a group of patients with a particular diagnosis, without a control group for comparison. - A **cross-sectional study** examines the relationship between diseases and other variables of interest as they exist in a defined population at one particular time. This type of study provides a 'snapshot' of the frequency and characteristics of a disease in a population at a specific point in time. - A **placebo** is an inactive substance or treatment that looks the same as, and is administered in the same way as, the drug or treatment being tested. It is used to control for the placebo effect, a psychological benefit derived from the expectation of improvement, rather than the characteristics of the actual drug.
Therefore, in the context of a clinical trial or research study, the term "controls" specifically refers to those individuals who serve as a baseline or standard for comparison against the group receiving the experimental treatment. This comparison is critical for the validity and reliability of the study's conclusions about the effectiveness and safety of the treatment under investigation.

質問 # 122
Which of the following is accurate of the acid-base balance of a patient who is in the progressive stage of shock?

• A. Metabolic acidosis.
• B. None of these.
• C. Profound acidosis.
• D. Respiratory alkalosis.

正解：A

解説：
In the progressive stage of shock, a patient typically exhibits significant physiological changes due to inadequate tissue perfusion and oxygenation. Among these changes is an alteration in the body's acid-base balance, leading to metabolic acidosis. Let's explore why metabolic acidosis is the correct answer and what it implies for the patient's condition.
Metabolic acidosis occurs when there is an accumulation of acid in the body due to an underlying illness, or when bicarbonate (a base) is lost from the body. In the context of shock, especially in its progressive stage, the primary mechanism leading to metabolic acidosis is the generation of excessive lactic acid. This happens because cells, deprived of adequate oxygen, switch to anaerobic metabolism which produces lactic acid as a byproduct. Normally, cells produce energy using oxygen in a process known as aerobic metabolism, which does not generate significant amounts of lactic acid.
As shock progresses, the heart's ability to pump blood effectively is compromised, and blood pressure falls. This leads to reduced blood flow to organs and tissues, further limiting oxygen supply (hypoxia) and exacerbating anaerobic metabolism. The resulting overproduction of lactic acid lowers the pH of the blood, leading to acidosis. Additionally, the kidneys, which normally help regulate acid-base balance by excreting acid and reabsorbing bicarbonate, may function poorly due to reduced blood flow, contributing further to acidosis.
Other clinical signs that accompany metabolic acidosis in the progressive stage of shock include rapid and shallow respirations. This is the body's compensatory mechanism to try to expel excess CO2 (a component of the acid produced) and increase the blood pH towards normal. Other symptoms such as a drop in blood pressure, increased heart rate, reduced urine output, and changes in mental state and skin appearance are indicative of the severity of the shock and the body's worsening inability to cope with its demands.
It is important to note that while respiratory alkalosis might initially occur in the early stages of shock due to hyperventilation (rapid breathing), as the shock progresses and worsens, metabolic acidosis becomes more pronounced due to the reasons described above. Therefore, in a patient who is in the progressive stage of shock, metabolic acidosis is the accurate descriptor of their acid-base balance status. This understanding is crucial for managing shock, as it guides the therapeutic interventions aimed at restoring adequate tissue perfusion and oxygenation, and correcting the acid-base imbalance.

質問 # 123
What is the term for the portion of a medical visit or diagnostic procedure that patients pay according to the terms of the insurance policy?

• A. Co-payment.
• B. Deductible.
• C. Entitlement.
• D. Assignment.

正解：A

解説：
The correct term for the portion of a medical visit or diagnostic procedure that patients are required to pay under the terms of their insurance policy is "co-payment." Co-payment, often referred to as co-pay, is a fixed amount set by the insurance policy that the insured person must pay out of pocket for each visit to a healthcare provider or when receiving certain medical services. This payment is made at the time of the service and is a standard feature of many health insurance plans.
The purpose of the co-payment is to share the cost of medical care between the insurance company and the insured to prevent unnecessary medical visits or overutilization of healthcare services. It is usually a relatively small amount compared to the total cost of the service provided. The specific amount of the co-payment can vary depending on the insurance plan and the type of service received. For example, a visit to a primary care doctor might have a lower co-payment compared to a visit to a specialist.
Co-payments are distinct from other types of insurance payments such as deductibles and coinsurance. A deductible is the amount the insured must pay each year before their health insurance begins to pay. Coinsurance is a percentage of the cost of the service that the insured pays after meeting their deductible. In contrast, a co-payment is a specific, fixed amount paid for each service regardless of the total cost of the visit or treatment.
Understanding the terms of co-payments in one's health insurance policy is crucial for patients to manage their healthcare expenses effectively. It helps them anticipate out-of-pocket expenditures and budget accordingly for routine and necessary medical services.

質問 # 124
When evaluating a 56-year-old Caucasian female for menopause, the ACNS has knowledge that the primary function of FSH is:

• A. stimulation of maturation of ovarian follicles
• B. inhibiting release of LH from the pituitary gland
• C. triggering ovulation
• D. milk secretion

正解：A

解説：
When evaluating a menopausal condition in a 56-year-old Caucasian female, understanding the role of follicle-stimulating hormone (FSH) is crucial. FSH, a gonadotropin released by the anterior pituitary gland, primarily stimulates the maturation of ovarian follicles in women. Here's an expanded explanation of how FSH functions and why the correct answer is "stimulation of maturation of ovarian follicles":
FSH plays a pivotal role in the female reproductive system. During the follicular phase of the menstrual cycle, FSH is secreted and initiates the growth and maturation of immature ovarian follicles in the ovary. Each follicle contains an egg, and under the influence of FSH, these follicles start to grow and produce estrogen.
As the follicles mature, one of them will become the dominant follicle, which will eventually be ready for ovulation. The increase in estrogen levels from the maturing follicles feeds back to regulate FSH production, ensuring that hormone levels are appropriate for healthy cycle progression.
It's important to note that FSH alone does not trigger ovulation. That role is primarily handled by luteinizing hormone (LH), another gonadotropin released by the anterior pituitary. While FSH is responsible for the growth and maturation of the follicles, LH is the hormone that ultimately triggers the release of a mature egg from the dominant follicle during ovulation.
Also, FSH is not directly involved in the inhibition of LH release. The regulation of LH is more closely tied to the levels of estrogen and other hormones in the body. As estrogen levels rise, they can exert negative feedback on the pituitary gland, which can modulate the release of LH depending on the phase of the menstrual cycle.
Lastly, FSH does not play a direct role in milk secretion; this process is primarily controlled by prolactin, another hormone produced by the anterior pituitary gland. Prolactin levels increase during pregnancy and after childbirth to stimulate milk production in the mammary glands.
In summary, for a 56-year-old woman undergoing menopause, the primary function of FSH to remember is its role in stimulating the maturation of ovarian follicles. This understanding is crucial as it impacts the hormonal changes and symptoms associated with menopause, including the eventual decline in FSH levels as the ovaries cease follicle development.

質問 # 125
You are providing care to a patient who has had CABG. Two days post-surgery, she begins vomiting and complains of abdominal pain. What is the appropriate intervention for this patient?

• A. Assure the patient that this is normal after CABG and attempt to make her comfortable.
• B. Notify her doctor immediately so she can be assessed for GI bleeding.
• C. Administer an antinausea medication and attempt to make the patient comfortable.
• D. Change the patient's diet back to clear liquid if she has progressed to full liquid.

正解：B

解説：
The appropriate intervention for a patient who has had Coronary Artery Bypass Grafting (CABG) and begins to show symptoms of vomiting and abdominal pain two days post-surgery is to notify her doctor immediately so she can be assessed for gastrointestinal (GI) bleeding. This action is imperative because, although GI complications are infrequent following CABG-occurring in about 2% of cases-they can be severe and potentially life-threatening.
GI complications after CABG, such as bleeding, can arise from various sources including stress-related mucosal disease, peptic ulcers, or ischemic bowel disease. These conditions can lead to significant morbidity if not promptly diagnosed and treated. The symptoms of GI complications, including abdominal pain, distention, and nausea, necessitate urgent medical evaluation to rule out these serious conditions.
It is not advisable to merely administer anti-nausea medication and attempt to make the patient comfortable without further assessment. While managing symptoms is important, it is crucial to address the underlying cause to prevent complications. Similarly, reassuring the patient that this is normal without a proper assessment could delay necessary treatment and worsen the patient's condition.
Changing the patient's diet back to clear liquids, if she has progressed to full liquids, might seem like a cautious approach, but it does not address the potential severity of the underlying issue. This measure should only be considered following a thorough evaluation and under the guidance of a physician.
In conclusion, the initial step should always be to notify the patient's doctor for an immediate assessment when symptoms suggestive of GI complications arise post-CABG. This ensures that any serious conditions are promptly identified and managed, thereby reducing the risk of severe outcomes.

質問 # 126
When treating a patient with a history of resolved hepatitis A infection, you also note that her laboratory results show hepatitis B surface antigen (HBsAg) positive. This is most consistent with which of the following?

• A. chronic hepatitis B infection
• B. a resolved hepatitis B infection
• C. no evidence of hepatitis B infection
• D. evidence of effective hepatitis B immunization

正解：A

解説：
*P When evaluating a patient who shows a positive hepatitis B surface antigen (HBsAg), it is important to understand what this indicates in the context of hepatitis B infection. The presence of HBsAg is a key marker used to identify current hepatitis B virus (HBV) infection. HBsAg is the first serological marker to appear in the blood following infection with HBV and can be detected as early as 1 to 10 weeks before clinical symptoms become apparent, and it often persists for several months or longer. *P The presence of HBsAg suggests a few possible scenarios: 1. **Acute Hepatitis B Infection:** If the HBsAg is positive and the patient shows symptoms of hepatitis (like jaundice, fatigue, abdominal pain), it might indicate an acute infection. However, this is typically accompanied by the presence of hepatitis B core antigen (HBcAg) and IgM antibodies to HBcAg. 2. **Chronic Hepatitis B Infection:** If the HBsAg remains positive for more than 6 months, this indicates a chronic hepatitis B infection. Chronic HBV infection is characterized by the persistence of HBsAg and can lead to more serious health issues like cirrhosis or liver cancer if not managed properly. *P The other serological markers associated with hepatitis B include: - **Hepatitis B surface antibody (HBsAb):** This antibody indicates recovery and immunity from HBV infection. It is also present after successful vaccination against hepatitis B. - **Hepatitis B core antibody (HBcAb):** Appears at the onset of symptoms in acute HBV infection and persists for life. The presence of IgM antibody to HBcAb indicates recent infection (acute), while IgG antibody indicates past or chronic infection. *P Given that the patient has a positive HBsAg, the most consistent interpretation is chronic hepatitis B infection. This is because: - There is no current evidence of hepatitis B resolution, as HBsAg would not be present in resolved infections. - There is no evidence to suggest effective immunization, as a positive HBsAb (not HBsAg) would be the marker indicating immunity from vaccination. *P It is crucial to differentiate between these markers to correctly diagnose and manage the patient's condition. Chronic hepatitis B infection requires monitoring and potentially antiviral therapy to prevent progression to more severe liver disease. In conclusion, the positive HBsAg in this patient most consistently points to an ongoing chronic hepatitis B infection.

質問 # 127
Most states require advanced practice nurses to have which type of work environment?

• A. Adjusted.
• B. Independent.
• C. Collaborative.
• D. Traditional.

正解：C

解説：
The correct answer to the question regarding the type of work environment most states require for advanced practice nurses (APNs) is "Collaborative." This requirement is based on the regulations that govern the scope of practice for APNs, which can vary significantly from one state to another.
In the context of advanced practice nursing, collaboration typically means that the nurse works in conjunction with a physician or other healthcare providers. This collaborative model is designed to enhance patient care by integrating the unique skills and knowledge of each provider. It often involves formal agreements that outline the roles and responsibilities of each party, ensuring that the healthcare delivery is safe, effective, and compliant with state laws.
The necessity for collaboration may be rooted in several factors. One is the level of autonomy granted to APNs, which can differ based on state laws. Some states allow APNs full practice authority, meaning they can practice independently without any required collaboration with a physician. These states recognize that APNs are capable of making complex clinical decisions and managing patient care autonomously.
However, most states still require some level of physician oversight, whether through direct supervision or a collaborative agreement. This oversight might include regular consultation, review of patient cases, or co-signature on certain medical orders. The terminology used to describe these relationships can vary, including words like "collaboration," "delegation," or "supervision." The collaborative requirement is based on the belief that a team approach can lead to better patient outcomes. It leverages the strengths and expertise of both physicians and APNs, fostering a comprehensive approach to healthcare that benefits patients through improved access to care and a broadening of available services.
In summary, while the landscape of APN practice authority is evolving, with a trend towards greater independence in some regions, the prevailing requirement across most states remains a collaborative work environment. This model ensures that APNs are part of a healthcare team that delivers high-quality medical care, ultimately benefiting the broader health system and patient population.

質問 # 128
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