ATI LPN
LPN Pharmacology Practice Test
1. A client has a new prescription for amitriptyline. Which of the following instructions should the nurse include?
- A. Take the medication in the morning.
- B. Avoid consuming grapefruit juice.
- C. Take the medication with a full glass of water.
- D. Monitor for signs of weight gain.
Correct answer: C
Rationale: When a client is prescribed amitriptyline, it is important to instruct them to take the medication with a full glass of water. This instruction helps prevent esophageal irritation, as amitriptyline can be harsh on the esophagus. Option C is the correct choice. Option A, taking the medication in the morning, is not specific to amitriptyline and can vary depending on the individual's condition. Option B, avoiding grapefruit juice, is a general precaution for many medications but not specifically related to amitriptyline. Option D, monitoring for signs of weight gain, is not a direct instruction for taking the medication itself and may not be a common side effect of amitriptyline.
2. A client with heart failure is prescribed an angiotensin-converting enzyme (ACE) inhibitor. The nurse should reinforce which instruction?
- A. Take the medication at bedtime.
- B. Report a persistent dry cough.
- C. Increase potassium-rich foods in the diet.
- D. Avoid taking the medication with meals.
Correct answer: B
Rationale: The correct answer is to instruct the client to report a persistent dry cough. ACE inhibitors can cause a common side effect of a persistent dry cough, which should be promptly reported to the healthcare provider for further evaluation and possible medication adjustment. Option A is incorrect because the timing of ACE inhibitor administration is usually not specified to be at bedtime. Option C is incorrect as increasing potassium-rich foods can lead to hyperkalemia when taking ACE inhibitors. Option D is incorrect because ACE inhibitors can be taken with or without food.
3. The LPN/LVN is reinforcing discharge instructions to a client who has been prescribed nitroglycerin sublingual tablets for angina. Which statement by the client indicates a need for further teaching?
- A. I will keep my nitroglycerin tablets in the original glass bottle.
- B. I will sit or lie down when I take a nitroglycerin tablet.
- C. I will take a nitroglycerin tablet every 5 minutes if chest pain persists, up to a total of 3 tablets.
- D. I can swallow the nitroglycerin tablet with a glass of water if it does not dissolve quickly.
Correct answer: D
Rationale: The correct answer is D. Nitroglycerin sublingual tablets should not be swallowed; they must dissolve under the tongue to be effective. Choice A is correct as nitroglycerin tablets should be stored in their original glass container to prevent degradation. Choice B is correct as sitting or lying down when taking a nitroglycerin tablet helps prevent dizziness or fainting due to a sudden drop in blood pressure. Choice C is correct as taking a nitroglycerin tablet every 5 minutes for a maximum of 3 tablets is the correct protocol for managing angina symptoms.
4. The healthcare professional is assisting in the care of a client diagnosed with heart failure. The client is receiving furosemide (Lasix). Which laboratory value should the healthcare professional monitor most closely?
- A. Serum calcium
- B. Serum potassium
- C. Serum sodium
- D. Serum glucose
Correct answer: B
Rationale: Furosemide is a loop diuretic that can lead to significant potassium loss, making it crucial to monitor the client's serum potassium levels. Hypokalemia (low potassium levels) can result from furosemide use, potentially leading to adverse effects such as cardiac dysrhythmias. Therefore, close monitoring of serum potassium levels is essential to prevent complications in clients receiving furosemide. Monitoring serum calcium, sodium, or glucose levels is not the priority when administering furosemide.
5. The healthcare provider assesses a client who has been prescribed furosemide (Lasix) for cardiac disease. Which electrocardiographic change would be a concern for a client taking a diuretic?
- A. Tall, spiked T waves
- B. A prolonged QT interval
- C. A widening QRS complex
- D. Presence of a U wave
Correct answer: D
Rationale: The presence of a U wave is often associated with hypokalemia, a possible side effect of diuretic therapy like furosemide. Hypokalemia can lead to U wave formation on an electrocardiogram, making the presence of U waves a concerning finding in clients taking diuretics. Tall, spiked T waves are typically seen in hyperkalemia, not hypokalemia. A prolonged QT interval is more commonly associated with conditions like Long QT syndrome or certain medications, not specifically with diuretics. A widening QRS complex is usually seen in conditions affecting the conduction system of the heart, such as bundle branch blocks, rather than being directly related to diuretic use.
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