ATI LPN
LPN Pharmacology Practice Questions
1. 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.
2. The client with diabetes mellitus has gangrene of the toes to the midfoot. Which goal should be included in this client's plan of care?
- A. Restore skin integrity.
- B. Prevent infection.
- C. Promote healing.
- D. Improve nutrition.
Correct answer: B
Rationale: Preventing infection is crucial in clients with gangrene to halt the spread of infection and avert further complications. Infections can exacerbate tissue damage and lead to systemic complications, making infection prevention a priority in the care plan for this client. Restoring skin integrity and promoting healing may not be achievable goals until the infection is under control. Improving nutrition is important for overall health but may not be the priority when the immediate concern is preventing infection.
3. The nurse is informed during shift report that a client is experiencing occasional ventricular dysrhythmias. The nurse reviews the client's laboratory results, recalling that which electrolyte imbalance could be responsible for this development?
- A. Hypokalemia
- B. Hypernatremia
- C. Hypochloremia
- D. Hypercalcemia
Correct answer: A
Rationale: Hypokalemia, which is low potassium levels, can disrupt the normal electrical activity of the heart and lead to ventricular dysrhythmias. Potassium plays a crucial role in maintaining the heart's rhythm, and a deficiency can result in dangerous heart rhythm abnormalities. Hypernatremia (Choice B), which is high sodium levels, does not directly impact heart rhythm. Hypochloremia (Choice C), which is low chloride levels, is not typically associated with ventricular dysrhythmias. Hypercalcemia (Choice D), which is high calcium levels, is not a common cause of ventricular dysrhythmias.
4. A client with a diagnosis of deep vein thrombosis (DVT) has been placed on bed rest. The LPN/LVN should reinforce which instruction to the client to prevent complications?
- A. Perform ankle pumps and circles every 1 to 2 hours.
- B. Use a heating pad to relieve pain in the affected leg.
- C. Keep the affected leg flat and avoid elevation.
- D. Wear tight compression stockings to prevent swelling.
Correct answer: A
Rationale: Performing ankle pumps and circles every 1 to 2 hours is crucial for a client with DVT on bed rest. These exercises promote venous return, preventing stasis and reducing the risk of complications such as pulmonary embolism. Ankle pumps help activate the calf muscle pump, assisting in propelling blood back to the heart and preventing blood clots from forming or worsening. Choice B is incorrect because using a heating pad can increase blood flow to the area, potentially dislodging a clot. Choice C is incorrect because elevation helps reduce swelling and improve venous return. Choice D is incorrect because although compression stockings can be beneficial, they are not the most important instruction for preventing complications in this scenario.
5. A client has been taking levothyroxine for 6 months. Which of the following findings indicates that the medication is effective?
- A. Weight gain
- B. Increased heart rate
- C. Decreased TSH levels
- D. Elevated blood pressure
Correct answer: C
Rationale: In a client taking levothyroxine for thyroid hormone replacement, decreased TSH levels indicate that the medication is effective. TSH levels decrease as the thyroid hormone levels are adequately replaced by levothyroxine, signaling a positive response to treatment. Choices A, B, and D are incorrect because weight gain, increased heart rate, and elevated blood pressure are not expected findings indicating the effectiveness of levothyroxine therapy. Weight gain may suggest inadequate dosing, while increased heart rate and elevated blood pressure could indicate over-replacement or side effects of the medication.
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