HESI LPN
Pharmacology HESI 2023
1. 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.
2. 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.
3. A client with a history of heart failure is prescribed digoxin. The nurse should monitor for which potential side effect?
- A. Bradycardia
- B. Tachycardia
- C. Hypertension
- D. Hypotension
Correct answer: A
Rationale: Digoxin, a medication commonly prescribed for heart failure, can lead to bradycardia, characterized by a slow heart rate. Monitoring for bradycardia is crucial to detect and manage this potential side effect early on to prevent complications such as arrhythmias or decreased cardiac output. Tachycardia (choice B) is not typically associated with digoxin use. Hypertension (choice C) and hypotension (choice D) are also not common side effects of digoxin.
4. A client with a diagnosis of depression is prescribed escitalopram. Which statement by the client indicates the need for further teaching?
- A. I should take this medication in the morning with food.
- B. This medication may take 1 to 4 weeks to notice improvement in symptoms.
- C. I can stop taking this medication once I feel better.
- D. This medication might make me feel drowsy.
Correct answer: C
Rationale: It is crucial for clients to understand that they should not discontinue escitalopram abruptly, even if they start feeling better. Stopping the medication suddenly can lead to withdrawal symptoms or a relapse of depression. It is essential to complete the full course of treatment as prescribed by the healthcare provider to ensure the best outcomes and prevent potential complications.
5. In the immediate postoperative period, a client is prescribed morphine via a patient-controlled analgesia (PCA) pump. Which finding should the PN consider the highest priority in this client?
- A. Monitoring the expiration date of the PCA morphine
- B. Assessing the rate and depth of the client's respirations
- C. Reviewing the type of anesthesia used during the surgery
- D. Observing the client's signs of disorientation
Correct answer: B
Rationale: The highest priority for the PN is to assess the rate and depth of the client's respirations when a client is receiving morphine via a PCA pump. Respiratory depression is a life-threatening side effect of intravenous morphine administration. If the client's respiratory rate falls below 10 breaths/min, the PCA pump should be stopped, and the healthcare provider must be notified immediately to prevent further complications. Monitoring the expiration date of the PCA morphine is important but not the highest priority compared to assessing respiratory status. Reviewing the type of anesthesia used during the surgery is not directly related to the immediate management of the client receiving morphine via PCA. Observing signs of disorientation is also important but not as critical as assessing respirations for potential respiratory depression.
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