which laboratory test would be the least effective in making the diagnosis of a myocardial infarction
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Nursing Elites

NCLEX-PN

Nclex Practice Questions 2024

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

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

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.

3. Referral for client education in the community can be accomplished through all of the following except:

Correct answer: D

Rationale: Client education should be conducted by individuals with acknowledged expertise in the subject area and appropriate credentials to support their activities within the healthcare community. Choices A, B, and C involve reputable entities or professionals who can provide accurate and reliable client education. The American Heart Association, parish nurses, and home health care agencies are recognized for their healthcare-related knowledge and qualifications. However, unlicensed massage therapists lack the necessary qualifications and expertise to deliver appropriate healthcare-related education, making them unsuitable for referrals when it comes to client education in the community.

4. The Token Economy is a type of therapy that focuses on:

Correct answer: B

Rationale: The correct answer is 'behavior modification.' The Token Economy is a form of behavior modification that involves providing positive reinforcement in the form of tokens or rewards for desired behaviors. This approach aims to increase the occurrence of positive behaviors by rewarding them. Play therapy (choice A) focuses on using play as a medium for therapeutic communication, not specifically behavior modification. Milieu therapy (choice C) involves shaping the environment to promote desired behaviors but is not the primary focus of the Token Economy. 'Associative' (choice D) is not directly related to the Token Economy or its focus on behavior modification, making it an incorrect choice.

5. 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:

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.

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