A nurse is caring for a client who is developing signs of hemorrhage after 5 days of continuous warfarin use. Which of the following labs should the nurse utilize to determine the medication's current therapeutic level?

PTT level.

PT/INR level.

D-dimer level.

Vitamin K level.

Answer and Explanation

The Correct Answer is B

Rationale:

A. Partial thromboplastin time (PTT) is used to monitor the effectiveness of heparin therapy, not warfarin.

B. Prothrombin time (PT) and international normalized ratio (INR) are used to monitor the therapeutic level of warfarin. INR is the preferred method as it standardizes the PT results across different laboratories.

C. D-dimer level is a marker of fibrin degradation and is used to assess for the presence of blood clots, not to monitor warfarin therapy.

D. Vitamin K level is not used to monitor warfarin therapy. However, administering vitamin K can reverse the effects of warfarin in cases of overdose or hemorrhage.

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Correct Answer is D

Explanation

Rationale:

A. Limiting alcoholic beverages is important for heart health, but the recommended limit is typically lower than 3 drinks per day, especially for individuals with cardiac myopathy.

B. Increasing intake of saturated fats can exacerbate heart disease and increase the risk of angina episodes. The recommendation is usually to limit saturated fat intake.

C. Regular exercise is beneficial for heart health, but 30 minutes a week may not be sufficient for preventing angina episodes. The recommendation is typically at least 150 minutes of moderate- intensity aerobic exercise per week.

D. Maintaining a BMI (Body Mass Index) less than 25 is important for managing cardiac myopathy and preventing angina episodes. Excess weight can put strain on the heart and exacerbate heart disease.

A. The client has a history of migraine headaches. B. The client has a history of bronchial asthma. C. The client has a history of hypothyroidism. D. The client has a history of hypertension.

Correct Answer is B

Explanation

Rationale:

A. A history of migraine headaches is not a contraindication to atenolol use.

B. Atenolol is a beta-blocker, and its use is contraindicated in clients with bronchial asthma or a history of severe bronchospastic disease due to the risk of exacerbating bronchospasm.

C. A history of hypothyroidism is not a contraindication to atenolol use.

D. A history of hypertension is an indication for atenolol use, not a contraindication.

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A nurse is caring for a client who is developing signs of hemorrhage after 5 days of continuous warfarin use. Which of the following labs should the nurse utilize to determine the medication's current therapeutic level?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is D

Explanation

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Correct Answer is B

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