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Nursing Elites

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Pharmacology HESI Practice

1. A client is prescribed an antacid for the treatment of peptic ulcer disease. What is the action of this medication that is effective in treating the client's ulcer?

Correct answer: C

Rationale: The correct answer is C. Antacids work by neutralizing gastric acids and maintaining a gastric pH of 3.5 or above. This pH level is crucial to prevent the activation of pepsinogen, a precursor to pepsin, which can further damage the ulcer. Choice A is incorrect because antacids do not directly decrease the production of gastric secretions; they neutralize existing acid. Choice B is incorrect as antacids do not form a physical barrier over the ulcer but rather neutralize the acid around it. Choice D is also incorrect as antacids do not affect gastric motor activity but focus on reducing acidity in the stomach.

2. How does omeprazole work in treating a peptic ulcer?

Correct answer: D

Rationale: Omeprazole is a proton pump inhibitor that works by reducing gastric acid secretion. By inhibiting the enzyme responsible for pumping acid into the stomach, omeprazole helps decrease the acidity level in the stomach, providing relief from peptic ulcers. Option A is incorrect because omeprazole does not increase gastric acid production; instead, it decreases it. Option B is incorrect as omeprazole does not neutralize existing stomach acid but rather reduces its secretion. Option C is incorrect as omeprazole does not coat the stomach lining but acts on reducing acid secretion.

3. A client with hypertension is prescribed valsartan. The nurse should monitor the client for which potential side effect?

Correct answer: A

Rationale: The correct answer is A: Hypotension. Valsartan is an angiotensin II receptor blocker that can cause hypotension as a side effect by dilating blood vessels. Monitoring blood pressure is crucial to prevent complications related to low blood pressure. Choice B, Tachycardia, is incorrect because valsartan typically does not cause an increase in heart rate. Choice C, Hyperglycemia, is not a common side effect of valsartan. Choice D, Hyponatremia, is also unlikely with valsartan use.

4. A client with chronic pain is prescribed oxycodone. What instruction should the practical nurse (PN) include in the client's teaching plan?

Correct answer: B

Rationale: The correct answer is to instruct the client to avoid taking oxycodone with alcohol. Mixing oxycodone with alcohol can lead to serious side effects, including respiratory depression. Taking the medication with meals may not always be necessary, and instructions about fluid intake to avoid constipation are important but not the priority when considering the immediate risks associated with oxycodone. While reporting signs of respiratory depression is crucial, preventing it by avoiding alcohol is key in the client's safety.

5. Phenytoin is prescribed for a client who has a seizure disorder. Which statement by the client needs to be clarified by the healthcare provider?

Correct answer: D

Rationale: The correct answer is D because antacids should not be taken with phenytoin as they can decrease its effects. Taking antacids with phenytoin is not recommended. Choice A is correct; pink discoloration of urine can occur with phenytoin use. Choice B is also correct; abruptly stopping phenytoin can lead to seizures. Choice C is correct; monitoring glucose levels is important as phenytoin can increase glucose levels. Therefore, the statement about using antacids with phenytoin needs clarification.

Similar Questions

Phenytoin is prescribed for a client who has a seizure disorder. Which statement by the client needs to be clarified by the healthcare provider?
A client admitted with shortness of breath and palpitations currently takes an antiarrhythmic medication, dronedarone. Which action should the nurse take to prevent arrhythmias?
Which assessment finding indicates that the expected outcome of administering donepezil to a client with Alzheimer's disease has been accomplished?
A client with a diagnosis of bipolar disorder is prescribed oxcarbazepine. The nurse should monitor for which potential adverse effect?
A client is prescribed amitriptyline for depression. The practical nurse (PN) should monitor for which potential side effect?
Twenty-four hours after starting to take oral penicillin for strep throat, a client calls the nurse to report the onset of a rash on the chest. What action should the nurse implement?
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