HESI LPN
Pharmacology HESI 55 Questions 2023
1. A client receiving enalapril reports a persistent dry cough. The nurse should explain that this side effect is related to which medication action?
- A. It reduces the production of angiotensin II.
- B. It increases the production of angiotensin II.
- C. It causes increased production of bradykinin.
- D. It increases the production of aldosterone.
Correct answer: C
Rationale: The correct answer is C. Enalapril, an ACE inhibitor, inhibits the conversion of angiotensin I to angiotensin II, leading to increased levels of bradykinin. The accumulation of bradykinin is responsible for the persistent dry cough associated with ACE inhibitors like enalapril. Choices A, B, and D are incorrect because enalapril does not directly affect the production of angiotensin II or aldosterone. Instead, it primarily impacts the renin-angiotensin-aldosterone system by inhibiting the conversion of angiotensin I to angiotensin II, leading to bradykinin accumulation.
2. A client with a diagnosis of generalized anxiety disorder is prescribed buspirone. 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: The correct potential side effect of buspirone is drowsiness. It is important for clients to be informed about this side effect, as it can affect their ability to perform tasks that require full alertness, such as driving. Clients should be advised to avoid activities that require mental alertness until they know how the medication affects them. Dry mouth is a common side effect of some other medications used for anxiety, such as benzodiazepines. Nausea and headache are not typically associated with buspirone use.
3. The practical nurse administered 15 units of NPH insulin subcutaneously to a client before they consumed their breakfast at 7:30 AM. At what time is the client at an increased risk for a hypoglycemic reaction?
- A. 8:30 to 11:30 AM
- B. 3:30 to 7:30 PM
- C. 9:30 PM to midnight
- D. 1:00 to 5:00 AM
Correct answer: B
Rationale: NPH insulin, an intermediate-acting type, peaks approximately 8 to 12 hours after subcutaneous administration. Considering this, the client is most likely to experience a hypoglycemic reaction between 3:30 and 7:30 PM, making option B the correct answer. Choices A, C, and D are incorrect because they fall outside the peak time for a hypoglycemic reaction after administering NPH insulin.
4. A client with gastroesophageal reflux disease (GERD) is prescribed omeprazole. The nurse should reinforce which instruction?
- A. Take this medication in the morning before breakfast.
- B. Take this medication with meals.
- C. Avoid taking this medication with antacids.
- D. Take this medication at bedtime.
Correct answer: A
Rationale: The correct instruction for a client with GERD prescribed omeprazole is to take the medication in the morning before breakfast. Omeprazole works best when taken on an empty stomach, approximately 30 minutes before the first meal of the day. This timing maximizes its effectiveness in reducing stomach acid production and helps manage symptoms of GERD more efficiently. Choice B is incorrect because taking omeprazole with meals may reduce its efficacy as it needs an empty stomach for optimal absorption. Choice C is incorrect because omeprazole can be taken with or without food, but it should not be taken with antacids as they can affect its absorption. Choice D is incorrect because taking omeprazole at bedtime is less effective compared to taking it before breakfast due to the circadian rhythm of gastric acid secretion.
5. A client with a diagnosis of generalized anxiety disorder is prescribed lorazepam. The client should be informed that this medication may have which potential side effect?
- A. Drowsiness
- B. Dry mouth
- C. Nausea
- D. Headache
Correct answer: A
Rationale: The correct answer is A: Drowsiness. Lorazepam, a medication commonly used to treat anxiety disorders, can lead to drowsiness as a common side effect. It is important for clients to be aware of this potential effect, and they should be advised to avoid activities like driving until they understand how the medication affects them. Dry mouth, nausea, and headache are possible side effects of other medications but are less commonly associated with lorazepam.
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