The nurse has received the laboratory results for a patient who developed chest pain 4 hours ago and may be having a myocardial infarction. Which laboratory test result should be most helpful in indicating myocardial infarction?

Creatine kinase-MB (CK-MB)

B-type natriuretic peptide (BNP)

Myoglobin

Troponin

Answer and Explanation

The Correct Answer is D

A. CK-MB is a cardiac enzyme that rises in response to myocardial injury, but it is less specific and takes longer to rise than troponin.
B. BNP is associated with heart failure, not myocardial infarction.
C. Myoglobin is an early marker but is non-specific, as it rises with any muscle damage.
D. Troponin is the most specific and sensitive biomarker for myocardial infarction. It rises within 3-4 hours after myocardial injury and remains elevated for days, making it the most useful test for confirming an MI.

Nursing Test Bank

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Correct Answer is C

Explanation

A. Quickly removing the family members may add to their distress and does not respect their right to decide.

B. Telling them it will be stressful assumes their reaction without giving them a choice.

C. Allowing the family members to choose whether to stay respects their autonomy and can provide comfort during a difficult time. It is also in line with current best practices for family presence during resuscitation.

D. Assigning a staff member to wait outside is appropriate but should be done after offering the family the option to stay in the room.

A. the goal is to lower the BP to 120/80. B. lowering the BP quickly may decrease cerebral, coronary or renal perfusion. C. IV antihypertensive medications have a slow onset. D. Lowering the BP slowly allows the patient to rest.

Correct Answer is B

Explanation

A. While lowering BP to 120/80 may be an ultimate goal, it is not the initial target in a hypertensive emergency.

B. Rapid reduction in blood pressure can cause hypoperfusion of vital organs such as the brain, heart, and kidneys, leading to ischemic injury. The aim is to reduce the BP gradually to prevent these complications.

C. IV antihypertensive medications generally have a rapid onset, not a slow one.

D. While gradual reduction is important, it is not done to allow rest but to protect organ perfusion.

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A nurse is caring for a client in the emergency department (ED).

<div id="exhibits">Exhibits</div>

The nurse is planning care for the client. For each potential prescription, indicate whether it is an anticipated (high priority), nonessential (low priority), contraindicated(unrelated).

Select one or more in each option.

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The nurse has received the laboratory results for a patient who developed chest pain 4 hours ago and may be having a myocardial infarction. Which laboratory test result should be most helpful in indicating myocardial infarction?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

While close family members are visiting, a patient has a respiratory arrest, and resuscitation is started. Which action by the nurse is best?

Correct Answer is C

Explanation

A patient is being treated for hypertensive emergency. When treating this patient, the nurse recognizes the initial goal is to lower the mean blood pressure (BP) by 20-25% because

Correct Answer is B

Explanation

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