HESI LPN
Pharmacology HESI 55 Questions 2023
1. What class of laxative would the nurse recommend to a patient asking about the best way to prevent constipation?
- A. Stimulant laxatives
- B. Bulk-forming laxatives
- C. Emollient laxatives
- D. Hyperosmotic laxatives
Correct answer: B
Rationale: The correct answer is B: Bulk-forming laxatives. These laxatives are recommended to prevent constipation because they work by absorbing liquid in the intestines, forming a bulky, soft stool that is easier to pass. They are safe and considered the most natural option. Stimulant laxatives (choice A) work by promoting bowel movements through intestinal contractions and are more suitable for treating occasional constipation rather than preventing it. Emollient laxatives (choice C) soften the stool by increasing the incorporation of water into the feces and are more suitable for patients who need to avoid straining during defecation. Hyperosmotic laxatives (choice D) work by drawing water into the intestine through osmosis and are typically used for more severe cases of constipation, not for prevention.
2. A client with a history of seizures is prescribed valproic acid. The nurse should monitor for which potential adverse effect?
- A. Liver toxicity
- B. Kidney stones
- C. Weight gain
- D. Pancreatitis
Correct answer: A
Rationale: Corrected Valproic acid is known to cause liver toxicity as a potential adverse effect. Regular monitoring of liver function tests is crucial to detect any signs of liver damage early on and prevent serious complications. Kidney stones, weight gain, and pancreatitis are not typically associated with valproic acid use, making them incorrect choices in this scenario.
3. A client has metoprolol prescribed. The nurse should reinforce instructions that this medication has which potential adverse effect?
- A. Anxiety
- B. Tachycardia
- C. Sexual dysfunction
- D. Acute renal failure
Correct answer: C
Rationale: The correct answer is C: Sexual dysfunction. Metoprolol, a beta-blocker, can cause sexual dysfunction as an adverse effect. It is important for the nurse to educate the client about this potential side effect. Choice A is incorrect because metoprolol can cause depression, not anxiety. Choice B is incorrect as tachycardia is not an adverse effect of metoprolol; instead, it can lead to bradycardia. Choice D is incorrect because acute renal failure is not typically associated with the use of beta-blockers.
4. A client with a history of stroke is prescribed clopidogrel. The nurse should monitor the client for which potential side effect?
- A. Bleeding
- B. Bruising
- C. Nausea
- D. Headache
Correct answer: A
Rationale: Clopidogrel is an antiplatelet medication that works to prevent blood clots, but it can also increase the risk of bleeding. Therefore, the nurse should monitor the client for signs of bleeding, such as easy bruising, prolonged bleeding from cuts, blood in urine or stool, or unusual bleeding from the gums. Prompt identification and management of bleeding are crucial to prevent complications. Choices B, C, and D are incorrect because while bruising and other symptoms can occur as a result of bleeding, they are not the primary side effect to monitor for with clopidogrel. Nausea and headache are less commonly associated with clopidogrel use compared to bleeding.
5. A client has been diagnosed with open-angle glaucoma. The healthcare provider prescribes pilocarpine 1% eye drops. The nurse explains that which action of this drug makes it a useful treatment for the client's condition?
- A. The ciliary muscle contracts, increasing the outflow of aqueous humor in the eye.
- B. Ciliary muscles are paralyzed to decrease accommodation.
- C. Bilateral mydriasis with cycloplegia is accomplished.
- D. The production of aqueous humor in the eyes is decreased.
Correct answer: A
Rationale: Pilocarpine, a cholinergic agent, stimulates the ciliary muscle to contract, which opens the trabecular meshwork and facilitates the outflow of aqueous humor, reducing intraocular pressure. This mechanism helps in managing open-angle glaucoma by improving drainage and lowering pressure within the eye. Choice A is correct because the contraction of the ciliary muscle increases the outflow of aqueous humor, aiding in the treatment of open-angle glaucoma. Choices B, C, and D are incorrect because they do not describe the mechanism of action of pilocarpine in treating glaucoma.
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