A nurse is caring for a client who is prescribed warfarin. Which of the following actions should the nurse take?

Increase the client's dietary intake of vitamin K.

Teach the client that St. John's wort increases the effects of the medication.

Administer protamine sulfate if the client experiences an overdose.

Monitor the client's prothrombin time

Answer and Explanation

The Correct Answer is D

A. Increasing dietary intake of vitamin K would decrease the effectiveness of warfarin, as vitamin K is involved in clotting factor synthesis.

B. St. John's wort decreases the effects of warfarin, so it should be avoided.

C. Protamine sulfate is the antidote for heparin, not warfarin. The antidote for warfarin overdose is vitamin K.

D. Monitoring prothrombin time (PT) and INR is essential to assess the effectiveness and safety of warfarin therapy.

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Correct Answer is A

Explanation

A. At a rate of 100 mL/hr, a 1,000 mL bag will infuse over 10 hours. Starting at 0700, the infusion will complete at 1700, but the nurse typically hangs a new bag 1 hour before completion to avoid delays. 1300 is 6 hours in, leaving 400 mL; it allows enough time to prepare and change bags proactively.

B. 1100 is too early.

C. 1700 is too late – the bag would be empty by then.

D. 2200 is unrelated to the infusion timeline.

A. Ensure the NPH insulin is drawn into the syringe first. B. Use two separate syringes to mix the insulin. C. Administer the insulin within 20 min of preparing it. D. Inject air into the vial to withdraw the short-acting insulin.

Correct Answer is A

Explanation

A. Ensuring the NPH insulin is drawn into the syringe first is correct. This prevents contamination of the short-acting insulin with NPH insulin, which could delay its action.

B. Using two separate syringes is unnecessary; insulin can be mixed in one syringe.

C. Administering the insulin within 20 min of preparation is not a requirement. However, insulin should generally be administered shortly after preparation to maintain effectiveness.

D. Injecting air into the vial of short-acting insulin before drawing it is correct, but it should be done after the air is injected into the NPH vial.

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A nurse is caring for a client who is prescribed warfarin. Which of the following actions should the nurse take?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is A

Explanation

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Correct Answer is A

Explanation

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