ATI LPN
LPN Pharmacology Practice Questions
1. The client with atrial fibrillation is receiving warfarin (Coumadin). Which laboratory test should be monitored to determine the effectiveness of the therapy?
- A. Prothrombin time (PT) and international normalized ratio (INR)
- B. Activated partial thromboplastin time (aPTT)
- C. Complete blood count (CBC)
- D. Fibrinogen level
Correct answer: A
Rationale: Monitoring Prothrombin time (PT) and international normalized ratio (INR) is crucial when a client is on warfarin therapy. These tests assess the clotting ability of the blood and help determine the appropriate dosage of warfarin to prevent complications such as bleeding or clotting events. PT and INR values within the therapeutic range indicate the effectiveness of warfarin in managing atrial fibrillation. Choice B, activated partial thromboplastin time (aPTT), is not typically used to monitor warfarin therapy; it is more commonly used to assess the effectiveness of heparin therapy. Choice C, complete blood count (CBC), does not directly assess the anticoagulant effect of warfarin. Choice D, fibrinogen level, is not a primary test for monitoring warfarin therapy; it is more relevant in assessing conditions like disseminated intravascular coagulation.
2. The client is being ambulated due to activity intolerance caused by bacterial endocarditis. How can the nurse determine that the client is best tolerating ambulation?
- A. Mild dyspnea after walking 10 feet
- B. Minimal chest pain rated 1 on a 1-to-10 pain scale
- C. Pulse rate that increases from 68 to 94 beats per minute
- D. Blood pressure that increases from 114/82 to 118/86 mm Hg
Correct answer: D
Rationale: A slight increase in blood pressure without significant symptoms indicates that the client is tolerating the activity. In this scenario, a mild increase in blood pressure without other symptoms is a positive sign of tolerance to ambulation despite the underlying condition of bacterial endocarditis. Choices A, B, and C are not the best indicators of tolerance to ambulation in this case. Mild dyspnea after walking a short distance, minimal chest pain, and an increase in pulse rate are common signs that the activity might not be well-tolerated by the client with a history of bacterial endocarditis.
3. The client is reinforcing instructions for a low-sodium diet. Which statement by the client indicates a need for further teaching?
- A. I will avoid adding salt to my food while cooking.
- B. I will use salt substitutes instead of regular salt.
- C. I can eat as much processed food as I like since it's usually low in sodium.
- D. I will read food labels to check for sodium content.
Correct answer: C
Rationale: The correct answer is C. Processed foods often contain high amounts of sodium, so they should be limited or avoided on a low-sodium diet. Choosing processed foods can lead to increased sodium intake, counteracting the purpose of following a low-sodium diet. Option A shows an understanding of avoiding added salt, Option B suggests using alternatives to regular salt, and Option D indicates a willingness to check food labels for sodium content, all of which are appropriate for a low-sodium diet. Therefore, the client's statement about eating processed foods freely is incorrect and requires further teaching.
4. 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.
5. A client has a new prescription for metoprolol. Which of the following instructions should the nurse include?
- A. Monitor your blood pressure daily.
- B. Take the medication with food.
- C. Increase your intake of potassium-rich foods.
- D. Avoid consuming grapefruit juice.
Correct answer: A
Rationale: The correct answer is A, 'Monitor your blood pressure daily.' When a client is prescribed metoprolol, it is important to monitor blood pressure daily because the medication can cause hypotension, leading to low blood pressure. Regular monitoring allows for the early detection of any potential issues and adjustment of treatment if necessary. Choices B, C, and D are incorrect. Taking metoprolol with food is not necessary, increasing potassium-rich foods is not directly related to metoprolol therapy, and avoiding grapefruit juice is more relevant for certain other medications that interact with grapefruit.
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