A nurse in a provider's clinic is caring for a client who reports erectile dysfunction and requests a prescription for sildenafil. Which of the following medications currently prescribed for the client is a contraindication to taking sildenafil?

Metronidazole

Phenytoin

Isosorbide

Prednisone

Answer and Explanation

The Correct Answer is C

Isosorbide is a nitrate vasodilator used to dilate coronary vessels to relieve angina. Sildenafil also dilates peripheral vessels reducing peripheral vascular resistance. Using the two drugs together may lead to lethal drop in blood pressure and shock.
A, B, and D are not contraindicated with Sildenafil as they do not have any significant drug interactions

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Correct Answer is A

Explanation

Rationale-Warfarin is a coumarin oral anticoagulant. Unlike heparin, warfarin has an onset of action of 4-5 days and requires this duration to give its effect. Before its action takes effect, heparin is required to bridge the gap to prevent clot formation hence the overlap period. IV heparin has no effect on the action of warfarin as an anticoagulant as they have different modes of action

A. Call the client's provider. B. Stop the infusion. C. Auscultate the client's breath sounds. D. Elevate the head of the bed. E. Elevate the head of the bed.

Correct Answer is B

Explanation

The client is exhibiting symptoms and signs of anaphylaxis. Anaphylaxis is a severe systemic allergic reaction that occurs due to allergens presenting with (itching) urticaria and sudden onset shortness of breath and/or shock. The first action should be to stop the infusion to prevent worsening the severity of the allergic reaction.

A. Important to allow for further prescription but not a priority

C. Auscultating the lungs allows the nurse to assess for the severity of the reaction but should come after stopping the infusion

D. Elevating the head can improve ventilation but is not a priority

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A nurse in a provider's clinic is caring for a client who reports erectile dysfunction and requests a prescription for sildenafil. Which of the following medications currently prescribed for the client is a contraindication to taking sildenafil?

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Naxlex Comprehensive Predictor Exams

Correct Answer is A

Explanation

Correct Answer is B

Explanation

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