HESI LPN
Pharmacology HESI 55 Questions 2023
1. The client is receiving vancomycin, and the nurse plans to draw blood for a peak and trough to determine... the best timing for these levels?
- A. Midway through administration of the IV dose and 30 minutes before the next
- B. Two hours after completion of the IV dose and 30 minutes before the next
- C. Two hours after completion of the IV dose and one hour before the next
- D. Immediately after completion of the IV dose and 30 minutes before
Correct answer: B
Rationale: To accurately determine peak and trough levels of vancomycin, blood should be drawn two hours after the completion of the IV dose and 30 minutes before the next dose. This timing allows for appropriate assessment of the drug levels in the body, ensuring accurate monitoring of therapeutic and toxic concentrations. Choice A is incorrect as drawing blood midway through administration does not provide an accurate peak level. Choice C is incorrect as drawing blood one hour before the next dose does not represent the trough level. Choice D is incorrect because drawing blood immediately after completion of the IV dose does not allow enough time for the drug to reach peak levels.
2. A client with hypertension is prescribed lisinopril. The nurse should monitor the client for which potential side effect?
- A. Cough
- B. Dizziness
- C. Hyperkalemia
- D. Hyponatremia
Correct answer: A
Rationale: The correct answer is A: Cough. Lisinopril is known to cause a persistent dry cough as a side effect. It is essential for the nurse to monitor the client for this adverse reaction as it may lead to discontinuation of the medication. Dizziness, hyperkalemia, and hyponatremia are not typically associated with lisinopril use. Dizziness is more commonly seen with antihypertensives that cause orthostatic hypotension. Hyperkalemia and hyponatremia are not usually linked to lisinopril use.
3. A client with chronic obstructive pulmonary disease (COPD) is prescribed tiotropium. The nurse should instruct the client to report which potential side effect?
- A. Dry mouth
- B. Blurred vision
- C. Nausea
- D. Tachycardia
Correct answer: A
Rationale: The correct answer is A: Dry mouth. Tiotropium, a commonly prescribed medication for COPD, can cause dry mouth as a side effect. While it may not be severe, clients should report it if it becomes bothersome. Dry mouth is a common side effect of tiotropium due to its anticholinergic properties. Blurred vision, nausea, and tachycardia are not typically associated with tiotropium use in the context of COPD.
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 schizophrenia is prescribed olanzapine. The nurse should monitor the client for which potential side effect?
- A. Weight gain
- B. Dry mouth
- C. Hair loss
- D. Headache
Correct answer: A
Rationale: The correct answer is A: Weight gain. Olanzapine is known to cause weight gain as a common side effect. This weight gain can increase the risk of metabolic issues such as diabetes and dyslipidemia. Monitoring the client's weight regularly is essential to detect and address any weight changes promptly.
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