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 two-year-old has been in the hospital for 3 weeks and has seldom seen family members due to isolation precautions. Which of the following hospitalization changes is most likely to be occurring?

Correct answer: C

Rationale: The correct answer is 'Separation anxiety.' Separation anxiety is a common response in young children when they are separated from their primary caregivers for extended periods. In this case, the two-year-old being in the hospital for three weeks and not being able to see family members due to isolation precautions can trigger separation anxiety. 'Guilt' is a feeling of responsibility for wrongdoing, which is not the most likely change occurring in this scenario. 'Trust' involves reliance and confidence in others, not typically associated with prolonged separation from family. 'Shame' is a negative emotion related to feeling disgrace, which is not the most appropriate response in this hospitalization situation.

3. What significant event occurs in the orientation phase of a nurse-client relationship?

Correct answer: B

Rationale: In the orientation phase of a nurse-client relationship, the significant event is the identification of transference phenomenon. Transference phenomena are intensified in relationships with authority figures like nurses and physicians. Positive transferences may include a desire for affection and dependency, while negative transferences may involve hostility and competitiveness. It is crucial to recognize and address these transferences before progress and positive changes can be made in the working stage. The other choices are incorrect; the establishment of roles may occur in the working phase, placing the client within their family structure is not a key event in the orientation phase, and client agreement on the nurse's authority is not the primary focus during this phase.

4. During the work phase of the nurse-client relationship, the client says to her primary nurse, "You think that I could walk if I wanted to, don't you?"? What is the best response by the nurse?

Correct answer: D

Rationale: This response answers the question honestly and nonjudgmentally and helps to preserve the client's self-esteem. The nurse acknowledges the client's current inability to walk without attributing it to the client's desire. Choice A provides a positive but unrealistic statement that may diminish the client's self-esteem by implying a lack of effort. Choice B deflects the client's question and does not address the underlying concern. Choice C may increase the client's anxiety by suggesting unresolved psychological conflicts related to walking.

5. The client is admitted to the unit after a cholecystectomy. Montgomery straps are utilized with this client. The nurse is aware that Montgomery straps are utilized on this client because:

Correct answer: B

Rationale: Montgomery straps are used to secure dressings that require frequent changes due to the large amount of drainage usually present after a cholecystectomy. They are also beneficial for clients allergic to various types of tape. Answer A is incorrect as the client is not at higher risk of evisceration. Answer C is incorrect because Montgomery straps are not used to support drains. Answer D is incorrect as sutures or clips are typically used to secure the incision after gallbladder surgery, not Montgomery straps.

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