Nursing Elites

1. Which laboratory test would be the least effective in diagnosing a myocardial infarction?

• A. AST
• B. Troponin
• C. CK-MB
• D. Myoglobin

Correct answer: A

Rationale: AST, choice A, would be the least effective in diagnosing a myocardial infarction as it is not specific for this condition. Troponin, CK-MB, and myoglobin (choices B, C, and D) are more specific markers for myocardial infarction. Troponin is considered the gold standard due to its cardiac specificity. CK-MB is also specific to the heart, and its isoenzyme levels elevate post-heart damage. Myoglobin, although elevated in myocardial infarction, is not as specific as troponin and CK-MB and can also increase in conditions like burns and muscle trauma. Therefore, AST is the least effective choice for diagnosing a myocardial infarction.

2. A family member of a client with a diagnosis of Schizophrenia asks about the prognosis. The nurse's response is based on the knowledge that schizophrenia:

• A. affects both genders equally.
• B. is a chronic, deteriorating disease with periods of remission.
• C. is usually diagnosed in early adulthood.
• D. does not have a clear protective hormone effect delaying diagnosis.

Correct answer: B

Rationale: The correct answer is B: 'is a chronic, deteriorating disease with periods of remission.' While choices A, C, and D contain some truths about schizophrenia, they do not directly address the prognosis aspect of the question. Schizophrenia can affect both men and women equally, is typically diagnosed in early adulthood, and does not have a known protective hormone effect that delays diagnosis. Choice B accurately reflects the chronic and fluctuating nature of the disease, which is essential for understanding its long-term course.

3. A woman asks, "How much alcohol can I safely drink while pregnant?"? The nurse's best response is:

• A. "The amount of alcohol that is safe during pregnancy is unknown."?
• B. "Consuming one or two beers or glasses of wine a day is considered safe for a healthy pregnant woman."?
• C. "Drinking three or more drinks on any given occasion is the only harmful type of drinking during pregnancy."?
• D. "You can have a drink to help you relax and get to sleep at night."?

Correct answer: A

Rationale: The correct answer is, "The amount of alcohol that is safe during pregnancy is unknown."? This response is appropriate because there is no known safe amount of alcohol consumption during pregnancy. Consuming any amount of alcohol during pregnancy can pose risks to the developing fetus, leading to conditions like fetal alcohol syndrome, which is a combination of mental and physical abnormalities in infants. Choices B, C, and D are incorrect. Choice B suggests that consuming one or two drinks a day is safe during pregnancy, which is not supported by current medical guidelines. Choice C incorrectly states that only drinking three or more drinks on any given occasion is harmful, when in reality, any amount of alcohol can be harmful to the fetus. Choice D is inappropriate as it suggests that having a drink to relax and sleep is acceptable during pregnancy, which is not the case.

4. Some drugs are excreted into bile and delivered to the intestines. Prior to elimination from the body, the drug might be absorbed. This process is known as:

• A. hepatic clearance.
• B. total clearance.
• C. enterohepatic cycling.
• D. first-pass effect.

Correct answer: C

Rationale: The correct answer is 'enterohepatic cycling.' This process involves drugs being excreted into bile, delivered to the intestines, reabsorbed into the circulation, and can prolong the drug's presence in the body. 'Hepatic clearance' (Choice A) refers to the amount of drug eliminated by the liver. 'Total clearance' (Choice B) is the sum of all types of clearance including renal, hepatic, and respiratory. 'First-pass effect' (Choice D) is the amount of drug absorbed from the GI tract and metabolized by the liver before entering circulation, reducing the amount of drug available for systemic circulation.

5. James returns home from school angry and upset because his teacher gave him a low grade on an assignment. After returning home from school, he kicks the dog. This coping mechanism is known as:

• A. denial
• B. suppression
• C. displacement
• D. fantasy

Correct answer: C

Rationale: Displacement is the transference of emotions, such as anger, to a substitute target that may be less threatening. In this scenario, James redirects his anger from the teacher to the dog. Denial is refusing to acknowledge an aspect of reality. Suppression is consciously putting aside unwanted thoughts or feelings. Fantasy involves imagining unrealistic scenarios. Therefore, in this case, the correct answer is displacement as James displaces his anger towards the dog.

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