which of the following lab values is elevated first after a client has a myocardial infarction
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Nursing Elites

NCLEX-PN

Nclex Questions Management of Care

1. Which of the following lab values is elevated first after a client has a myocardial infarction?

Correct answer: B

Rationale: The correct answer is troponin. Troponin levels are the most specific and sensitive markers for myocardial infarction, and they begin to rise within a few hours after the event. CPK, SGOT, and LDH are also enzymes that can indicate myocardial damage, but troponin is the earliest and most specific indicator. CPK typically rises 4-8 hours after an infarction, followed by SGOT (AST) at 8-12 hours, and LDH at 12-24 hours post-infarction.

2. What is distraction therapy?

Correct answer: A

Rationale: Distraction therapy involves directing attention away from pain towards positive stimuli, which can help reduce the perception of pain. Choice A is the correct answer as it accurately defines distraction therapy. Cognitive reappraisal (Choice B) involves changing the way one thinks about a situation to alter its emotional impact, which is different from distraction therapy. Choice C is incorrect because distraction therapy does not involve replacing images of pain with other images, but rather focusing on something unrelated. Choice D is incorrect as distraction therapy does not necessarily involve medication or meditation, but rather the redirection of attention.

3. The nurse is teaching a client about sleep and gives background information on normal sleep patterns. Which of the following substances promotes sleep?

Correct answer: A

Rationale: Serotonin is a substance found in the body that promotes sleep. It plays a role in the synthesis of a hypnogenic factor that directly induces sleep. Cortisol is a stress hormone that can disrupt sleep patterns. Alcohol can disrupt REM sleep and negatively impact sleep quality. Narcotics, like alcohol, can interfere with sleep architecture and lead to poor quality sleep. Therefore, the correct answer is serotonin as it is associated with promoting sleep, while the other substances listed can have negative effects on sleep patterns.

4. In an emergency situation where a client is unconscious and requires immediate surgery, what action is necessary with regard to informed consent?

Correct answer: A

Rationale: In emergency situations where obtaining consent is not possible due to the client's condition, healthcare providers are allowed to perform life-saving procedures without informed consent. It is assumed that the client would want to receive necessary treatment to save their life. Therefore, the correct action is for the healthcare team to proceed with the surgery as consent is not needed. Waiting to contact the client's family for consent can delay life-saving treatment, risking the client's life. Contacting the hospital clergy for consent is unnecessary and can cause further delays. Obtaining consent from the client's legal guardian is not feasible in this critical situation and may lead to a delay in providing essential care.

5. A nurse in a long-term care center notes that an employee is constantly calling in sick. Which action should the nurse take initially to handle this problem?

Correct answer: B

Rationale: When an employee demonstrates excessive absenteeism, the initial action a nurse should take is to discuss the situation with the employee and remind them of the agency's employment standards. It is important to communicate openly with the employee to understand the reasons for their frequent absences and remind them of the expectations regarding attendance. This approach allows for a constructive dialogue and provides the employee with an opportunity to rectify their behavior. Documenting the employee's absences in the personnel file may be necessary if the issue persists despite the discussion. Reporting the employee to administration should be considered only if the employee fails to improve after the initial discussion. Issuing a written warning should be a subsequent step if the employee continues to violate the attendance policies even after reminders and discussions.

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