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. When a client needs oxygen therapy, what is the highest flow rate that oxygen can be delivered via nasal cannula?

Correct answer: C

Rationale: The correct answer is 6 liters/minute. When a client needs oxygen therapy, the highest flow rate that oxygen can be delivered via nasal cannula is 6 liters/minute. Higher flow rates must be delivered by a mask. Choices A, B, and D are incorrect because they suggest flow rates that exceed what can be effectively delivered through a nasal cannula.

3. For which of the following conditions might blood be drawn to assess uric acid levels?

Correct answer: B

Rationale: Uric acid levels are commonly assessed in patients with gout. Gout is a type of arthritis caused by the buildup of uric acid crystals in the joints, leading to inflammation and pain. Monitoring uric acid levels helps in diagnosing and managing gout. Asthma, diverticulitis, and meningitis are not conditions where blood tests for uric acid levels are typically necessary. Asthma is a respiratory condition, diverticulitis involves inflammation of the digestive tract, and meningitis is an infection of the meninges in the brain and spinal cord.

4. Which direction given to the nursing assistant is most likely to accomplish the task of getting a urine specimen delivered to the lab immediately after collection?

Correct answer: D

Rationale: Effective delegation depends on clear, concise direction that leaves no room for question or interpretation on the part of the one being delegated to. In this scenario, the most appropriate direction is to ensure the urine specimen is collected promptly and delivered to the lab immediately. Choice A is too vague and does not specify the urgency required. Choice B does not emphasize the immediate need for the specimen to be delivered. Choice C introduces unnecessary medical information that is beyond the scope of a nursing assistant and may cause confusion. Therefore, choice D is the correct answer as it provides clear instructions for immediate action without room for misunderstanding.

5. While documenting on a paper form, the nurse realizes they have made a mistake writing the progress note. What should the nurse do?

Correct answer: B

Rationale: In the scenario described, it is essential for the nurse not to alter the original progress note. Option B is the correct course of action as it maintains the integrity of the documentation while acknowledging the error for transparency and accuracy. Using a black marker (Option A) or whiteout (Option C) can be seen as an attempt to conceal the mistake, which is not in line with professional standards. Option D is incorrect because the mistake should be addressed within the documentation itself, not by informing the client directly about it.

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