ATI LPN
Pharmacology for LPN
1. The nurse is assisting with the care of a client who is on a continuous heparin infusion for deep vein thrombosis (DVT). Which laboratory test should the nurse monitor to evaluate the effectiveness of the therapy?
- A. Prothrombin time (PT)
- B. Activated partial thromboplastin time (aPTT)
- C. International normalized ratio (INR)
- D. Platelet count
Correct answer: B
Rationale: To evaluate the effectiveness of heparin therapy in a client with DVT, the nurse should monitor the activated partial thromboplastin time (aPTT). The aPTT test helps ensure that the dose of heparin is within the therapeutic range, which is essential for preventing clot formation or excessive bleeding. Monitoring aPTT is crucial in managing patients on heparin therapy to maintain the delicate balance between preventing thrombosis and avoiding hemorrhage. Prothrombin time (PT) and International normalized ratio (INR) are more indicative of warfarin therapy effectiveness, not heparin. Platelet count assesses platelet levels and function, not the effectiveness of heparin therapy for DVT.
2. A client is prescribed clopidogrel. What laboratory result should be monitored by the nurse?
- A. White blood cell count
- B. Creatinine
- C. Blood glucose
- D. Platelet count
Correct answer: D
Rationale: When a client is prescribed clopidogrel, monitoring the platelet count is essential. Clopidogrel is an antiplatelet medication that works by preventing blood clots. Monitoring the platelet count is crucial in assessing the risk of thrombocytopenia, a potential side effect of clopidogrel. Monitoring white blood cell count, creatinine, or blood glucose is not directly related to the action or side effects of clopidogrel, making choices A, B, and C incorrect.
3. A client has a new prescription for allopurinol. Which of the following instructions should the nurse include?
- A. Take the medication with food.
- B. Increase your fluid intake.
- C. Avoid consuming dairy products.
- D. Take the medication in the morning.
Correct answer: B
Rationale: Increasing fluid intake is essential when taking allopurinol to prevent the formation of kidney stones. Allopurinol can increase the levels of uric acid in the body, which can lead to kidney stone formation. By increasing fluid intake, the client can help flush out excess uric acid and prevent the development of kidney stones. It is important to drink plenty of water throughout the day to maintain adequate hydration and reduce the risk of kidney stone formation. Choices A, C, and D are incorrect. Taking allopurinol with food or in the morning does not specifically relate to preventing kidney stone formation. Avoiding dairy products is not a standard recommendation when taking allopurinol.
4. A client has a new prescription for alendronate. Which of the following instructions should be included in the teaching?
- A. Take the medication with a full glass of water.
- B. Lie down for 30 minutes after taking the medication.
- C. Take the medication at bedtime.
- D. Avoid dairy products while taking the medication.
Correct answer: A
Rationale: The correct instruction for taking alendronate is to take it with a full glass of water to prevent esophageal irritation. This helps ensure proper absorption and reduces the risk of irritation to the esophagus. Choice B is incorrect because patients should remain upright for at least 30 minutes after taking alendronate to prevent esophageal irritation. Choice C is incorrect as alendronate should be taken in the morning on an empty stomach. Choice D is also incorrect as there is no specific requirement to avoid dairy products while taking alendronate.
5. A client with heart failure is prescribed an angiotensin-converting enzyme (ACE) inhibitor. What instruction should the nurse reinforce to the client?
- 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 B. A persistent dry cough is a common side effect of ACE inhibitors and should be reported to the healthcare provider. This symptom can indicate a potential issue with the medication that may require adjustment or discontinuation. Choices A, C, and D are incorrect. Taking the medication at bedtime or with meals is not a specific instruction for ACE inhibitors. Increasing potassium-rich foods in the diet is not directly related to ACE inhibitor therapy and may not be suitable for all patients.
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