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. A client has a new prescription for heparin. Which of the following laboratory results should be monitored to evaluate the effectiveness of the medication?
- A. Prothrombin time (PT)
- B. International normalized ratio (INR)
- C. Activated partial thromboplastin time (aPTT)
- D. Platelet count
Correct answer: C
Rationale: Activated partial thromboplastin time (aPTT) is the laboratory result that should be monitored to evaluate the effectiveness of heparin. Heparin works by prolonging the aPTT, and monitoring this parameter helps ensure the medication's effectiveness and safety in preventing clot formation. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor the effectiveness of warfarin, another anticoagulant. Platelet count is essential to assess platelet function and clotting disorders, but it is not specifically used to monitor heparin therapy.
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. A nurse is assessing a client who has a new prescription for enalapril. Which of the following findings is a priority for the nurse to report to the provider?
- A. Frequent urination
- B. Dry cough
- C. Tremors
- D. Dizziness
Correct answer: D
Rationale: The correct answer is D: Dizziness. Dizziness is a sign of hypotension, a potential adverse effect of enalapril. Enalapril is an ACE inhibitor commonly prescribed for hypertension. Hypotension is a serious side effect that can lead to complications such as falls and injuries. Reporting dizziness promptly is crucial to prevent any harm to the client. Choices A, B, and C are not directly associated with enalapril use and are less concerning compared to the potential implications of hypotension indicated by dizziness.
5. When educating a client with a new prescription for nitroglycerin, which of the following instructions should the nurse include?
- A. Store the medication in a cool, dark place.
- B. Take the medication before bedtime.
- C. Take the medication with food.
- D. Take the medication at the first sign of chest pain.
Correct answer: D
Rationale: The correct instruction for a client with a new prescription for nitroglycerin is to take the medication at the first sign of chest pain. Nitroglycerin is a vasodilator used to relieve chest pain associated with angina. Taking it at the onset of chest pain ensures prompt relief by dilating blood vessels and increasing blood flow to the heart muscle. Storing nitroglycerin in a cool, dark place helps maintain its potency, while taking it with food can alter its absorption. Timing the medication with bedtime is not necessary, but prompt administration at the first sign of chest pain is crucial for effective management of angina. Choices A, B, and C are incorrect because storing the medication in a cool, dark place, taking it before bedtime, and taking it with food are not essential instructions for nitroglycerin use. The priority is to administer it promptly when chest pain occurs to achieve optimal therapeutic effects.
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