ATI LPN
LPN Pharmacology Practice Test
1. When educating a client about the use of risedronate to treat osteoporosis, which instruction should be included?
- A. Drink a full glass of water with each dose.
- B. Take the medication on an empty stomach.
- C. Remain upright for 30 minutes after taking the medication.
- D. Avoid lying down for at least 1 hour after taking the medication.
Correct answer: C
Rationale: The correct instruction for a client taking risedronate to treat osteoporosis is to remain upright for 30 minutes after taking the medication. This is important to prevent esophageal irritation, as risedronate can cause irritation if it remains in contact with the esophagus. By staying upright, the medication is more likely to reach the stomach quickly and reduce the risk of irritation to the esophagus. Choices A, B, and D are incorrect. Drinking a full glass of water is recommended, not milk, to help with swallowing the medication. Risedronate should be taken on an empty stomach, not with meals, to ensure proper absorption. Additionally, avoiding lying down for at least 1 hour after taking the medication helps prevent esophageal irritation.
2. A healthcare professional is assessing a client who has a new prescription for furosemide. Which of the following findings should the healthcare professional report to the provider?
- A. Weight gain
- B. Dry cough
- C. Hypokalemia
- D. Increased appetite
Correct answer: C
Rationale: The correct answer is C: Hypokalemia. Hypokalemia is a common electrolyte imbalance associated with furosemide use due to its diuretic effect, which can lead to potassium loss. It is crucial to report hypokalemia promptly to the provider as it can result in serious complications such as cardiac arrhythmias. Monitoring and managing potassium levels are essential in patients taking furosemide to prevent adverse effects related to electrolyte imbalances. Choices A, B, and D are incorrect findings to report in a client prescribed furosemide. Weight gain is not typically associated with furosemide use, a dry cough is more commonly linked to ACE inhibitors, and increased appetite is not a common adverse effect of furosemide.
3. The LPN/LVN is assisting in caring for a client in the telemetry unit and is monitoring the client for cardiac changes indicative of hypokalemia. Which occurrence noted on the cardiac monitor indicates the presence of hypokalemia?
- A. Tall, peaked T waves
- B. ST-segment depression
- C. Prolonged P-R interval
- D. Widening of the QRS complex
Correct answer: B
Rationale: ST-segment depression can indicate hypokalemia, affecting the heart's electrical conduction. Hypokalemia leads to alterations in the repolarization phase of the cardiac action potential, resulting in ST-segment depression on the ECG. Tall, peaked T waves are indicative of hyperkalemia, not hypokalemia. A prolonged P-R interval is more commonly associated with first-degree heart block. Widening of the QRS complex is typically seen in conditions like bundle branch blocks or ventricular tachycardia, not specifically in hypokalemia.
4. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which laboratory value should the nurse monitor to assess the effectiveness of the medication?
- A. Activated partial thromboplastin time (aPTT)
- B. Prothrombin time (PT) and international normalized ratio (INR)
- C. Platelet count
- D. Erythrocyte sedimentation rate (ESR)
Correct answer: B
Rationale: Prothrombin time (PT) and international normalized ratio (INR) are the laboratory values used to monitor the effectiveness of warfarin therapy. These values help ensure that the client is within the therapeutic range for anticoagulation. PT measures the time it takes for blood to clot, while INR standardizes PT results to minimize variations between laboratories. Monitoring these values is crucial to prevent complications such as bleeding or clot formation. Activated partial thromboplastin time (aPTT) (Choice A) is more commonly used to monitor heparin therapy. Platelet count (Choice C) assesses the number of platelets in the blood and is not specific to warfarin therapy. Erythrocyte sedimentation rate (ESR) (Choice D) is a non-specific marker of inflammation and is not used to monitor the effectiveness of warfarin therapy.
5. A client with a diagnosis of heart failure is prescribed spironolactone (Aldactone). Which laboratory value should the nurse monitor closely?
- A. Serum calcium
- B. Serum potassium
- C. Serum sodium
- D. Serum glucose
Correct answer: B
Rationale: The correct answer is B: Serum potassium. Spironolactone is a potassium-sparing diuretic, which can lead to hyperkalemia. Monitoring serum potassium levels is crucial to prevent potential complications related to high potassium levels, such as cardiac arrhythmias. Therefore, close monitoring of serum potassium is essential for clients taking spironolactone. Choices A, C, and D are incorrect because spironolactone does not directly impact serum calcium, sodium, or glucose levels significantly. While these values may be monitored for other reasons in a client with heart failure, they are not the primary focus of monitoring when spironolactone is prescribed.
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