HESI LPN
Pharmacology HESI 55 Questions 2023
1. A client with a history of hypertension is prescribed hydrochlorothiazide. The practical nurse should monitor the client for which potential adverse effect?
- A. Hyperkalemia
- B. Hypokalemia
- C. Hypernatremia
- D. Hyponatremia
Correct answer: B
Rationale: Corrected Rationale: Hydrochlorothiazide is a diuretic that can lead to potassium loss, resulting in hypokalemia. Monitoring for hypokalemia is essential because it can cause various complications such as cardiac dysrhythmias. Therefore, the practical nurse should closely watch for signs and symptoms of low potassium levels in clients taking hydrochlorothiazide. Incorrect Rationale for Other Choices: A. Hyperkalemia is not typically associated with hydrochlorothiazide use; instead, it is more commonly linked to medications like ACE inhibitors or potassium-sparing diuretics. C. Hypernatremia is unlikely with hydrochlorothiazide use as it tends to cause sodium loss. D. Hyponatremia is more commonly associated with conditions where there is excessive water intake or syndrome of inappropriate antidiuretic hormone secretion (SIADH), rather than with hydrochlorothiazide use.
2. A client with chronic kidney disease is prescribed sevelamer carbonate. The nurse should monitor for which potential side effect?
- A. Hypercalcemia
- B. Hypocalcemia
- C. Hyperkalemia
- D. Hypokalemia
Correct answer: A
Rationale: When a client with chronic kidney disease is prescribed sevelamer carbonate, the nurse should monitor for hypercalcemia as a potential side effect. Sevelamer carbonate can bind to dietary calcium and impair its absorption, potentially leading to elevated calcium levels in the blood. Monitoring calcium levels is crucial to detect and manage hypercalcemia promptly. Hypocalcemia (choice B) is incorrect because sevelamer carbonate's action is more likely to cause elevated calcium levels. Hyperkalemia (choice C) and hypokalemia (choice D) are related to potassium levels and are not typically associated with sevelamer carbonate use.
3. A client is prescribed phenobarbital 100 mg daily for the treatment of seizures. Which statement made by the client indicates an accurate understanding of the medication phenobarbital?
- A. I will take my medicine at 10 PM before retiring to bed.
- B. The medication will turn the color of my urine to a pink color.
- C. I should not eat or drink anything for at least 2 hours before taking my medicine.
- D. In the event a seizure occurs in the middle of the day, I need to take an extra dose of my medicine.
Correct answer: A
Rationale: The correct answer is A. Phenobarbital should be taken at the same time every day to maintain blood levels and enhance compliance. Common side effects of phenobarbital include drowsiness, lethargy, dizziness, and nausea; therefore, it is best to take it before bedtime to minimize these effects and improve sleep quality. Choice B is incorrect because phenobarbital does not affect the color of urine. Choice C is incorrect because there is no need to fast before taking phenobarbital. Choice D is incorrect because taking extra doses without healthcare provider guidance can lead to overdose and adverse effects.
4. A client with a history of heart failure is prescribed carvedilol. The nurse should monitor for which potential side effect?
- A. Bradycardia
- B. Tachycardia
- C. Hypertension
- D. Hyperglycemia
Correct answer: A
Rationale: When a client is prescribed carvedilol, the nurse should monitor for bradycardia, a potential side effect of this medication. Carvedilol is a beta-blocker that can slow down the heart rate, so monitoring for signs of bradycardia is essential to prevent any adverse effects on the client's cardiovascular system. Tachycardia (Choice B) is less likely to occur with carvedilol since it primarily works to reduce heart rate. Hypertension (Choice C) and hyperglycemia (Choice D) are not common side effects associated with carvedilol.
5. In a capillary glucose measurement, a client is to receive 10 units of regular insulin and isophane insulin. How should the nurse prepare?
- A. Withdraw ten units of regular insulin from a vial
- B. Withhold the dose until regular insulin is available
- C. Obtain a new vial of regular insulin and withhold
- D. Pull up 30 units from a vial but only administer 10 units
Correct answer: B
Rationale: In insulin administration, regular insulin is typically administered before isophane insulin to manage blood glucose effectively. If regular insulin is not available, it is best to withhold the dose until it can be administered as prescribed. Choice A is incorrect as it suggests withdrawing from a specific vial without specifying regular insulin. Choice C is incorrect as obtaining a new vial of regular insulin may not be necessary if it becomes available shortly. Choice D is incorrect as administering 10 units from a mixture of regular and isophane insulin is not the correct approach.
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