HESI RN
Pharmacology HESI
1. Sildenafil (Viagra) is prescribed to treat a client with erectile dysfunction. A nurse reviews the client's medical record and would question the prescription if which of the following is noted in the client's history?
- A. Neuralgia
- B. Insomnia
- C. Use of nitroglycerin
- D. Use of multivitamins
Correct answer: C
Rationale: The correct answer is C. Sildenafil (Viagra) enhances the vasodilating effect of nitric oxide and is contraindicated with the concurrent use of organic nitrates and nitroglycerin. Using nitroglycerin together with Viagra can lead to severe hypotension and cardiovascular collapse, making it unsafe to combine both medications.
2. Bethanechol chloride (Urecholine) is prescribed for a client with urinary retention. Which disorder would be a contraindication to the administration of this medication?
- A. Gastric atony
- B. Urinary strictures
- C. Neurogenic atony
- D. Gastroesophageal reflux
Correct answer: B
Rationale: Bethanechol chloride (Urecholine) should not be administered to clients with urinary strictures as it can contract the bladder and increase pressure within the urinary tract. In individuals with urinary strictures, this elevated pressure may lead to bladder rupture. Therefore, caution is advised when considering the use of Bethanechol chloride in clients with urinary strictures to prevent potential complications. Gastric atony, neurogenic atony, and gastroesophageal reflux are not contraindications for the administration of Bethanechol chloride for urinary retention.
3. An older client recently has been taking cimetidine (Tagamet). The nurse monitors the client for which most frequent central nervous system side effect of this medication?
- A. Tremors
- B. Dizziness
- C. Confusion
- D. Hallucinations
Correct answer: C
Rationale: Older clients are particularly vulnerable to central nervous system side effects of cimetidine. The most frequent side effect is confusion. It is crucial for nurses to be vigilant in monitoring for confusion as it can impact the client's safety and well-being. While tremors, dizziness, and hallucinations are possible side effects, confusion is the most common in older clients taking cimetidine.
4. A client is prescribed metronidazole (Flagyl) for a trichomoniasis infection. Which of the following should the nurse include in the teaching plan?
- A. Avoid consuming alcohol while taking this medication.
- B. Take the medication with food.
- C. Increase fluid intake to prevent kidney stones.
- D. Report any gastrointestinal upset to the healthcare provider.
Correct answer: A
Rationale: The correct answer is A. Metronidazole (Flagyl) can cause a disulfiram-like reaction when taken with alcohol, resulting in severe nausea, vomiting, and headache. Therefore, the client should be advised to avoid alcohol while taking this medication to prevent adverse effects. Avoiding alcohol is crucial to prevent these reactions and ensure the effectiveness of the treatment. The other options are not directly related to the specific medication or the condition being treated.
5. A nurse reinforces discharge instructions to a postoperative client who is taking warfarin sodium (Coumadin). Which statement, if made by the client, reflects the need for further teaching?
- A. I will take my pills every day at the same time.
- B. I will be certain to avoid alcohol consumption.
- C. I have already called my family to pick up a Medic-Alert bracelet.
- D. I will take Ecotrin (enteric-coated aspirin) for my headaches because it is coated.
Correct answer: D
Rationale: Ecotrin is an aspirin-containing product and should be avoided. Clients should avoid alcohol consumption, take prescribed medication at the same time each day, and use a Medic-Alert bracelet for emergency information.
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