ATI LPN
LPN Pharmacology
1. The healthcare provider is preparing to assist in the care of a client who has just returned from coronary artery bypass graft (CABG) surgery. Which is the priority action?
- A. Monitor the client's urine output.
- B. Check the client's surgical dressing.
- C. Measure the client's blood pressure.
- D. Assess the client's level of consciousness.
Correct answer: D
Rationale: Assessing the client's level of consciousness is the priority action post-CABG surgery to monitor for signs of cerebral hypoxia or other complications that require immediate intervention. Changes in the client's level of consciousness can indicate neurological deterioration, which is critical to address promptly in this postoperative period. Monitoring urine output, checking surgical dressing, and measuring blood pressure are important aspects of postoperative care but assessing the client's level of consciousness takes precedence as it provides crucial information about the client's neurological status and the need for urgent intervention.
2. Which laboratory test should be monitored to evaluate the effectiveness of anticoagulant therapy in a client with deep vein thrombosis (DVT)?
- A. Complete blood count (CBC)
- B. Activated partial thromboplastin time (aPTT)
- C. Serum electrolytes
- D. Liver function tests
Correct answer: B
Rationale: Activated partial thromboplastin time (aPTT) is the laboratory test monitored to evaluate the effectiveness of anticoagulant therapy, particularly with heparin. It measures the time it takes for blood to clot, and monitoring aPTT helps ensure the therapeutic range is maintained to prevent clot formation and excessive bleeding. Choices A, C, and D are incorrect because a complete blood count (CBC) assesses overall health, serum electrolytes evaluate the body's electrolyte balance, and liver function tests assess liver health, none of which directly evaluate the effectiveness of anticoagulant therapy for DVT.
3. A client with a diagnosis of angina pectoris is prescribed nitroglycerin. The nurse should teach the client to take the medication in which way?
- A. Take one tablet daily with breakfast
- B. Take one tablet every 5 minutes as needed, up to three times
- C. Take one tablet every hour until pain subsides
- D. Take one tablet only if pain does not subside after 30 minutes
Correct answer: B
Rationale: Nitroglycerin is a rapid-acting medication used to relieve angina pain by dilating blood vessels. The correct administration is to take one tablet every 5 minutes as needed, up to three doses. This dosing regimen helps in managing acute angina episodes effectively. Choice A is incorrect because nitroglycerin is not taken once daily. Choice C is incorrect because waiting for an hour between doses may not provide timely relief during angina attacks. Choice D is incorrect as it suggests waiting for 30 minutes before taking another dose, which could delay symptom relief in acute situations.
4. The healthcare provider is teaching a client about the use of nitroglycerin patches for angina pectoris. Which instruction should the healthcare provider include?
- A. Apply the patch to the same site each day
- B. Remove the patch at bedtime to prevent tolerance
- C. Cover the patch with a bandage to keep it in place
- D. Rotate the application site every 24 hours
Correct answer: D
Rationale: Rotating the application site every 24 hours is crucial when using nitroglycerin patches to prevent skin irritation and ensure consistent absorption of the medication. By rotating the site, the risk of local skin reactions is reduced, and the effectiveness of the nitroglycerin patch is maintained. Applying the patch to the same site each day (Choice A) can lead to skin irritation. Removing the patch at bedtime (Choice B) is not necessary as long as the prescribed wearing schedule is followed. Covering the patch with a bandage (Choice C) is not recommended as it may interfere with proper absorption.
5. A client has a new prescription for rifampin. Which of the following instructions should the nurse include?
- A. Take the medication with food.
- B. Expect red-orange discoloration of body fluids.
- C. Monitor for signs of hyperglycemia.
- D. Avoid consuming dairy products.
Correct answer: B
Rationale: The correct answer is to inform the client to expect red-orange discoloration of body fluids when taking rifampin. Rifampin is known to cause this side effect, which is harmless but can be surprising to patients. It is important for the nurse to educate the client about this expected change to prevent unnecessary concern or alarm. Monitoring for hyperglycemia is not directly related to rifampin, and taking the medication with food or avoiding dairy products are not specific instructions for this medication.
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