ATI LPN
LPN Pharmacology Practice Test
1. A healthcare provider is providing discharge instructions to a client who has a new prescription for digoxin. Which of the following instructions should the healthcare provider include?
- A. Take the medication at bedtime.
- B. Avoid taking antacids with this medication.
- C. Monitor your pulse rate daily.
- D. Increase your intake of potassium-rich foods.
Correct answer: C
Rationale: The correct answer is C: 'Monitor your pulse rate daily.' Monitoring the pulse rate daily is crucial when taking digoxin as it helps in early detection of digoxin toxicity. Digoxin can cause toxicity, which may manifest as changes in the heart rate, making monitoring the pulse rate an essential part of managing the medication. It is important for the client to be aware of their normal pulse rate and report any significant changes to their healthcare provider promptly. Choices A, B, and D are incorrect. Taking digoxin at bedtime is not a specific instruction related to monitoring its effects. Avoiding antacids is relevant for some medications, but not a key concern with digoxin. Increasing potassium-rich foods may interact with digoxin due to its effect on potassium levels, but monitoring the pulse rate is a more direct and immediate need for safety.
2. The nurse is caring for a client with hypertension who is prescribed a thiazide diuretic. The nurse should check which parameter before administering the medication?
- A. Serum potassium level
- B. Blood pressure
- C. Heart rate
- D. Serum sodium level
Correct answer: B
Rationale: Before administering a thiazide diuretic to a client with hypertension, the nurse should check the blood pressure. Thiazide diuretics are prescribed to lower blood pressure, so assessing the client's blood pressure prior to administration helps to monitor the effectiveness of the medication and to ensure the client's safety. Checking the serum potassium level (Choice A), heart rate (Choice C), or serum sodium level (Choice D) are also important parameters in the care of a client on a thiazide diuretic, but the priority assessment before administering the medication is the blood pressure to evaluate the drug's effectiveness in managing hypertension.
3. A client with chronic heart failure is being discharged with a prescription for digoxin (Lanoxin). Which instruction should the nurse reinforce?
- A. Take the medication at the same time each day.
- B. Avoid foods high in potassium.
- C. Skip a dose if you feel well.
- D. Take the medication on an empty stomach.
Correct answer: A
Rationale: Taking digoxin at the same time each day is essential to maintain a consistent blood level of the medication. This consistency helps optimize the therapeutic effects of digoxin in managing chronic heart failure. Deviating from the scheduled time could lead to fluctuations in drug levels, affecting its effectiveness and potentially causing harm. Choices B, C, and D are incorrect because avoiding potassium-rich foods, skipping doses when feeling well, and taking the medication on an empty stomach are not relevant or appropriate instructions for a client prescribed digoxin.
4. A client has a new prescription for sertraline. 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: B
Rationale: The correct instruction for the nurse to include is to 'Avoid consuming grapefruit juice.' Grapefruit juice can increase sertraline levels, leading to an elevated risk of side effects. Instructing the client to avoid grapefruit juice is crucial to prevent potential interactions that could impact the effectiveness and safety of the medication. The other options are not directly related to sertraline administration. Taking the medication in the morning may vary depending on individual preferences or the prescriber's directions. Taking the medication with a full glass of water is a general instruction for many medications and not specific to sertraline. Monitoring for signs of weight gain is important but not a direct instruction related to taking sertraline.
5. A client with a history of heart failure is prescribed metoprolol (Lopressor). The nurse should monitor the client for which common side effect of this medication?
- A. Tachycardia
- B. Hypotension
- C. Hypertension
- D. Hyperglycemia
Correct answer: B
Rationale: Metoprolol is a beta-blocker commonly used in heart failure to reduce blood pressure. One of the common side effects of metoprolol is hypotension, which can lead to dizziness, lightheadedness, and even fainting. Therefore, monitoring for hypotension is essential to prevent adverse effects and ensure patient safety. Choices A, C, and D are incorrect. Tachycardia is not a common side effect of metoprolol, as it actually reduces heart rate. Hypertension is also not a common side effect of this medication, as it is intended to lower blood pressure. Hyperglycemia is not a typical side effect of metoprolol.
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