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
Prednisone
Isosorbide
The Correct Answer is D
Rationale:
A. Metronidazole: Metronidazole is an antibiotic and does not have significant interactions with sildenafil.
B. Phenytoin: Phenytoin is an anticonvulsant medication and does not have significant interactions with sildenafil.
C. Prednisone: Prednisone is a corticosteroid and does not have significant interactions with sildenafil.
D. Isosorbide: Isosorbide is a nitrate medication used to treat angin
A. Combining sildenafil with nitrate medications can lead to severe hypotension and is contraindicated. Sildenafil potentiates the vasodilatory effects of nitrates, which can result in a dangerous drop in blood pressure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is {"A":{"answers":"A"},"B":{"answers":"B"},"C":{"answers":"C"},"D":{"answers":"A"},"E":{"answers":"A"},"F":{"answers":"B"}}
Explanation
-
Liver Function Tests: Improved
The significant decrease in AST, ALT, ALP, and bilirubin levels indicates improved liver function. -
Edema: Improved
The reduction from +3 to +2 edema in the lower extremities shows a decrease in swelling, indicating improvement. -
Fetal Heart Rate and Variability: Declined
The decrease in FHR with minimal variability and no accelerations suggests a decline in fetal status. -
Headache: Improved
The reduction in headache pain from a score of 8 to 2 indicates improvement. -
Epigastric Discomfort: Improved
The absence of epigastric pain on Day 2 suggests improvement. -
Urine Dipstick: Not Changed
The protein levels in the urine remained at 2+ on both days, indicating no change in kidney function.
Correct Answer is D
Explanation
Rationale:
A. Headache can be a common side effect of magnesium sulfate but is usually not concerning unless severe or persistent.
B. A fetal heart rate of 158/min is within the normal range for a fetus and is not typically associated with magnesium sulfate administration.
C. Respirations of 16/min are within the normal range and are not typically associated with magnesium sulfate administration.
D. A urinary output of 40 mL in 2 hours is significantly reduced and may indicate magnesium toxicity or impaired renal function, which should be reported to the provider for further
evaluation and management.
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