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
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
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A history of gastric ulcers is a contraindication to the use of aspirin. Aspirin is a nonsteroidal anti-inflammatory drug (NSAID) that can irritate the stomach lining and increase the risk of gastrointestinal bleeding and ulcers. Therefore, in a client with a history of gastric ulcers, aspirin should be avoided to prevent exacerbation of the condition and potential complications.
A, B, D - Migraine headaches, glaucoma and amenorrhea are not contraindications to aspirin use
Correct Answer is C
Explanation
Aspirin is a salicylate that has multiple effects. When taken in excess in susceptible individuals it can cause tinnitus due to salicylism. The client should be advised to report any tinnitus to the provider as this may be a sign of aspirin toxicity.
A. Black stool is the client signifies upper GI bleeding that should be monitored for and reported if it occurs
B. Aspirin tablets have a vinegar smell when hydrolysis has taken place and should not be taken at this point
D. Aspirin should be taken with meals or after meals
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