A nurse in a healthcare 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?
Pantoprazole
Isosorbide mononitrate
Acetylsalicylic acid
Atorvastatin sodium
The Correct Answer is B
A. Pantoprazole: This medication is a proton pump inhibitor used to treat acid-related disorders and does not interact adversely with sildenafil.
B. Isosorbide mononitrate: This is correct. Isosorbide mononitrate is a nitrate used to treat angina. Combining it with sildenafil can lead to severe hypotension due to their additive vasodilatory effects.
C. Acetylsalicylic acid: This is incorrect. Acetylsalicylic acid (aspirin) is used for pain relief and cardiovascular protection and does not contraindicate sildenafil use.
D. Atorvastatin sodium: This is incorrect. Atorvastatin is a statin used to manage cholesterol levels and does not contraindicate sildenafil use.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Prepare the client for transfer to a facility with a hyperbaric chamber: This may be required for severe cases of carbon monoxide poisoning, but immediate intervention with high-flow oxygen is essential first.
B. Apply oxygen via a nonrebreather mask at 15 liters: Carbon monoxide poisoning requires immediate high-flow oxygen to help displace carbon monoxide from hemoglobin. This is the first step in treatment to prevent further tissue hypoxia and complications.
C. Check the client's oxygenation level with a pulse oximeter: While important, it does not address the immediate need for high-flow oxygen to treat carbon monoxide poisoning.
D. Administer intravenous (IV) fluids: IV fluids may be necessary for supportive care but are not the priority for treating carbon monoxide poisoning. The immediate need is to provide high-flow oxygen.
Correct Answer is ["56"]
Explanation
To calculate the infusion rate, we'll use the following formula:
Infusion rate (gtt/min) = (Volume to be infused (mL) / Time (min)) Drop factor (gtt/mL)
First, calculate the total time in minutes:
- 3 hours 60 minutes/hour = 180 minutes
Then, calculate the volume per minute:
- 500 mL / 180 minutes = 2.78 mL/min
Finally, multiply the volume per minute by the drop factor:
- 2.78 mL/min 20 gtt/mL = 55.6 gtt/min
Therefore, the nurse should set the manual IV infusion to deliver 56 gtt/min.
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