ATI LPN
LPN Pharmacology Practice Questions
1. A client with chronic obstructive pulmonary disease (COPD) is prescribed theophylline. Which adverse effect should the nurse monitor for that indicates toxicity?
- A. Tachycardia
- B. Constipation
- C. Drowsiness
- D. Tremors
Correct answer: A
Rationale: The correct answer is A: Tachycardia. Tachycardia is a common sign of theophylline toxicity. The nurse should monitor the client for an increased heart rate, as it can indicate a dangerous level of theophylline in the body. Prompt medical attention is required if tachycardia is observed to prevent further complications. Choices B, C, and D are incorrect because constipation, drowsiness, and tremors are not typically associated with theophylline toxicity. While theophylline can cause gastrointestinal upset or central nervous system effects, tachycardia is a more specific and serious indicator of toxicity that requires immediate attention.
2. The nurse is caring for a client with hypertension who is prescribed enalapril (Vasotec). The nurse should monitor the client for which potential adverse effect?
- A. Hypertension
- B. Hypotension
- C. Tachycardia
- D. Hyperglycemia
Correct answer: B
Rationale: The correct answer is B: Hypotension. Enalapril is an ACE inhibitor that works by dilating blood vessels and reducing blood pressure. Therefore, a potential adverse effect of enalapril is hypotension, not hypertension (choice A), tachycardia (choice C), or hyperglycemia (choice D). Monitoring for hypotension is crucial to prevent complications.
3. The client at risk for thrombophlebitis receives reinforcement from the LPN/LVN regarding measures to minimize its occurrence. Which statement by the client indicates an understanding of this information?
- A. I should avoid sitting for prolonged periods.
- B. I will take frequent walks and avoid prolonged bed rest.
- C. I should drink plenty of fluids to stay hydrated.
- D. I will use compression stockings as advised by my doctor.
Correct answer: B
Rationale: The correct answer is B. Taking frequent walks and avoiding prolonged bed rest are essential measures to promote circulation and reduce the risk of thrombophlebitis. Physical activity helps prevent blood from pooling and clotting in the veins, thus decreasing the likelihood of thrombophlebitis development. Choice A is incorrect because while avoiding prolonged sitting is important, it is not as effective as engaging in physical activity. Choice C is not directly related to preventing thrombophlebitis. Choice D, using compression stockings, is a helpful measure but not as effective as regular physical activity in preventing thrombophlebitis.
4. What preoperative instruction should the LPN/LVN reinforce to a client scheduled for a carotid endarterectomy?
- A. You will need to be NPO after midnight before the surgery.
- B. You should avoid deep breathing and coughing after the surgery.
- C. You will be able to eat and drink normally after the procedure.
- D. You can take all of your prescribed medications the morning of surgery.
Correct answer: A
Rationale: The correct preoperative instruction that the LPN/LVN should reinforce to a client scheduled for a carotid endarterectomy is being NPO after midnight before the surgery. This instruction is essential to prevent aspiration and ensure a safe procedure. Avoiding oral intake helps reduce the risk of complications during anesthesia induction and the surgical process. Choices B, C, and D are incorrect because avoiding deep breathing and coughing, resuming normal eating and drinking, and taking all prescribed medications the morning of surgery are not recommended preoperative instructions for a carotid endarterectomy.
5. The LPN/LVN is assisting in the care of a client with a diagnosis of heart failure who is receiving digoxin (Lanoxin). Which laboratory result should the nurse monitor closely?
- A. Serum sodium
- B. Serum potassium
- C. Serum calcium
- D. Serum glucose
Correct answer: B
Rationale: The correct answer is serum potassium. Monitoring serum potassium levels is crucial when a client is receiving digoxin (Lanoxin) because low potassium levels can increase the risk of digoxin toxicity. Digoxin and low potassium levels can lead to serious cardiac complications, such as arrhythmias. Therefore, close monitoring of serum potassium is essential to prevent adverse effects and ensure the safe administration of digoxin in clients with heart failure. Serum sodium, serum calcium, and serum glucose levels are also important laboratory values to monitor in clients with heart failure, but they are not directly associated with the risk of digoxin toxicity. Monitoring these values helps in assessing overall health status, fluid balance, and metabolic functions in the client.
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