A patient taking warfarin has bleeding gums and several new bruises. Which test is most important for the nurse to review?
Correct answer: A. International normalized ratio
- A. International normalized ratio
- B. Serum sodium concentration
- C. Peak expiratory flow rate
- D. White blood cell count
Explanation
The international normalized ratio, or INR, evaluates the anticoagulant effect of warfarin and helps identify excessive anticoagulation. Bleeding symptoms with a high INR require prompt reporting, while the other tests do not measure warfarin activity.
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About Cardiovascular and Respiratory Drugs
Cardiovascular and respiratory drugs include antihypertensives, diuretics, antianginal agents, antiarrhythmics, cardiac glycosides, anticoagulants, bronchodilators, corticosteroids and cough medicines. Questions focus on mechanisms, indications, contraindications, toxicity and monitoring, especially the difference between drugs that reduce blood pressure, improve cardiac output or open narrowed airways.
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50 free Cardiovascular and Respiratory Drugs MCQs from Nursing Pharmacology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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