HESI LPN
Pharmacology HESI 55 Questions 2023
1. 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.
2. A client with rheumatoid arthritis is prescribed adalimumab. What instruction should the nurse include in the client's teaching plan?
- A. Avoid live vaccines while taking this medication.
- B. Take this medication with food to decrease gastrointestinal upset.
- C. Report any signs of infection to the healthcare provider.
- D. Avoid sunlight exposure while taking this medication.
Correct answer: A
Rationale: The correct instruction for a client prescribed adalimumab, which is an immunosuppressant medication, is to avoid live vaccines. Adalimumab can weaken the immune system, making live vaccines potentially harmful. It is essential to educate the client on this to prevent complications and ensure the effectiveness of the treatment.
3. A client with a diagnosis of generalized anxiety disorder is prescribed diazepam. The nurse should instruct the client that this medication may have which potential side effect?
- A. Drowsiness
- B. Dry mouth
- C. Nausea
- D. Headache
Correct answer: A
Rationale: Correct. Diazepam, a medication commonly used to treat anxiety disorders, can lead to drowsiness as a potential side effect. It is important for clients taking diazepam to be cautious about activities that require alertness, such as driving, due to the risk of drowsiness associated with this medication. Choice B, dry mouth, is not typically associated with diazepam use. Choice C, nausea, is less common as a side effect of diazepam compared to drowsiness. Choice D, headache, is also less common and typically not a significant side effect of diazepam.
4. A client with heart failure develops hyperaldosteronism. What dietary recommendation is essential for managing this condition?
- A. Limit intake of high potassium foods
- B. Replace salt with salt substitute
- C. Monitor skin for excessive bruising
- D. Cover your skin before going outside
Correct answer: A
Rationale: Hyperaldosteronism can lead to increased potassium retention, which can be problematic for individuals with heart failure. Limiting intake of high potassium foods is crucial to prevent hyperkalemia, a condition that can worsen heart failure. Therefore, advising the client to limit high potassium foods is essential in managing hyperaldosteronism in the setting of heart failure.
5. A client with hypertension is prescribed doxazosin. The nurse should monitor for which potential side effect?
- A. Hypotension
- B. Hypertension
- C. Hyperglycemia
- D. Hypernatremia
Correct answer: A
Rationale: The correct answer is A: Hypotension. Doxazosin is an alpha-blocker medication commonly used to treat hypertension. One of the potential side effects of doxazosin is causing a sudden drop in blood pressure, leading to hypotension. Therefore, the nurse should closely monitor the client for signs and symptoms of low blood pressure when initiating or adjusting the dose of doxazosin.
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