HESI LPN
Pharmacology HESI 55 Questions 2023
1. A 67-year-old client is discharged from the hospital with a prescription for digoxin 0.25 mg daily. Which instruction by the practical nurse (PN) is correct?
- A. Take the medication in the morning before getting out of bed.
- B. Do not take the medication if the heartbeat is irregular or slow.
- C. Expect some vision changes due to the medication.
- D. Increase intake of foods rich in potassium.
Correct answer: B
Rationale: The correct instruction for a client taking digoxin is not to take the medication if the heartbeat is irregular or slow. Digoxin can affect the heart rhythm, so it is crucial to monitor the pulse rate. In case of irregular or slow heartbeats, the medication should be withheld, and the healthcare provider should be consulted. This step is necessary to prevent potential complications associated with digoxin therapy. Choices A, C, and D are incorrect. Taking digoxin in the morning before getting out of bed is not a specific requirement. Vision changes are not a common side effect of digoxin. While digoxin can affect potassium levels, it is not advised to increase potassium intake without healthcare provider guidance.
2. A client is prescribed an antacid for the treatment of peptic ulcer disease. What is the action of this medication that is effective in treating the client's ulcer?
- A. Decrease in the production of gastric secretions
- B. Production of an adherent barrier over the ulcer
- C. Maintenance of a gastric pH of 3.5 or above
- D. Decrease in the gastric motor activity
Correct answer: C
Rationale: The correct answer is C. Antacids work by neutralizing gastric acids and maintaining a gastric pH of 3.5 or above. This pH level is crucial to prevent the activation of pepsinogen, a precursor to pepsin, which can further damage the ulcer. Choice A is incorrect because antacids do not directly decrease the production of gastric secretions; they neutralize existing acid. Choice B is incorrect as antacids do not form a physical barrier over the ulcer but rather neutralize the acid around it. Choice D is also incorrect as antacids do not affect gastric motor activity but focus on reducing acidity in the stomach.
3. A client with a history of stroke is prescribed dabigatran. The nurse should monitor for which potential side effect?
- A. Dry mouth
- B. Weight gain
- C. Headache
- D. Dizziness
Correct answer: C
Rationale: The correct answer is C: Headache. Dabigatran, an anticoagulant, can cause headache as a potential side effect. Headache is important to monitor as it may indicate adverse effects or complications that need attention. Choices A, B, and D are incorrect because dry mouth, weight gain, and dizziness are not commonly associated with dabigatran use.
4. A client with rheumatoid arthritis is prescribed hydroxychloroquine. What instruction should the nurse include in the client's teaching plan?
- A. Avoid sunlight exposure while taking this medication.
- B. Take this medication with food to reduce gastrointestinal upset.
- C. Report any signs of infection to the healthcare provider.
- D. Report any signs of vision changes to the healthcare provider.
Correct answer: D
Rationale: Hydroxychloroquine is known to cause vision changes, including retinopathy. Therefore, it is crucial for clients to report any vision changes promptly to their healthcare provider to prevent any potential ocular complications. While sunlight exposure should be limited due to photosensitivity, the key concern with hydroxychloroquine is the risk of vision changes, not gastrointestinal upset or infections.
5. The nurse is studying antacids that contain magnesium and calcium for the pharmacology exam. The student nurse remembers that these antacids should be used with caution in patients with which condition?
- A. Hypertension
- B. Renal failure
- C. Heart failure
- D. Peptic ulcer disease
Correct answer: B
Rationale: Magnesium and calcium can accumulate in patients with renal failure, leading to toxicity.
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