A nurse is collecting data for a client who experienced a myocardial infarction prior to a cardiac arrest. Which of the following laboratory tests will identify early injury to the cardiac muscle?

Creatine kinase-myocardial band (CK-MB) test

Troponin T test

Brain natriuretic peptide (BNP) test

Creatine kinase (CK) test

Answer and Explanation

The Correct Answer is B

A. Creatine kinase-myocardial band (CK-MB) test: While CK-MB is also a marker of myocardial injury, it is less specific than troponin and can be elevated in other conditions, such as muscle injury.

B. Troponin T test. The Troponin T test is highly specific and sensitive for myocardial injury and is considered the gold standard for diagnosing a myocardial infarction. Troponin levels rise within hours of cardiac muscle injury and remain elevated for days, providing an early and reliable indicator of cardiac muscle damage.

C. Brain natriuretic peptide (BNP) test. BNP levels are used to assess heart failure and do not indicate acute cardiac muscle injury.

D. Creatine kinase (CK) test. CK measures overall muscle injury, not specific to cardiac muscle.

Nursing Test Bank

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Correct Answer is A

Explanation

A. Obtain a pair of slipper socks for the client. Slipper socks can provide warmth without applying direct heat, which is safer for clients with impaired circulation.

B. Increase the client's oral fluid intake. Increasing fluids does not directly address cold feet and may be contraindicated depending on the client’s condition.

C. Rub the client's feet briskly for several minutes. Rubbing can damage skin and tissue in clients with poor circulation and should be avoided.

D. Place a moist heating pad under the client's feet. Heating pads can cause burns and further impair circulation in clients with vascular issues.

A. 25 gtt/min B. 1500 gtt/min C. 50 gtt/min D. 83 gtt/min

Correct Answer is C

Explanation

A. 25 gtt/min: Calculating the correct rate reveals that this is not the correct answer.

B. 1500 gtt/min: This rate is too high; the calculation does not support this answer.

C. 50 gtt/min: To calculate: (100 mL / 120 min) × 30 gtt/mL = 50 gtt/min.

D. 83 gtt/min: This is too high based on the calculation.

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A nurse is collecting data for a client who experienced a myocardial infarction prior to a cardiac arrest. Which of the following laboratory tests will identify early injury to the cardiac muscle?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is A

Explanation

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Correct Answer is C

Explanation

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