ATI LPN
LPN Pharmacology Practice Questions
1. The client has been prescribed atorvastatin (Lipitor) for hyperlipidemia. Which instruction should the nurse provide to the client?
- A. Take the medication in the morning with breakfast.
- B. Avoid drinking grapefruit juice while taking this medication.
- C. Increase your intake of dietary fiber while on this medication.
- D. Avoid eating foods high in potassium.
Correct answer: B
Rationale: The correct instruction for the nurse to provide to the client prescribed atorvastatin (Lipitor) for hyperlipidemia is to avoid drinking grapefruit juice while taking this medication. Grapefruit juice can interfere with the metabolism of atorvastatin, leading to an increased risk of side effects. It is crucial for the client to adhere to this instruction to ensure the effectiveness and safety of the treatment. Choices A, C, and D are incorrect because taking the medication with breakfast, increasing dietary fiber intake, and avoiding foods high in potassium are not specific instructions related to atorvastatin therapy for hyperlipidemia.
2. 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.
3. A healthcare professional is assessing a client who has a new prescription for levothyroxine. Which of the following findings should the healthcare professional report to the provider?
- A. Weight gain
- B. Increased heart rate
- C. Heat intolerance
- D. Elevated blood pressure
Correct answer: C
Rationale: The correct answer is C: Heat intolerance. Heat intolerance is a concerning sign of levothyroxine toxicity and should be reported to the provider promptly. Levothyroxine is a medication used to treat hypothyroidism by supplementing the body's thyroid hormones. When a client experiences heat intolerance, it can indicate that the dose of levothyroxine is too high, leading to hyperthyroidism symptoms. Weight gain, increased heart rate, and elevated blood pressure are not typically associated with levothyroxine toxicity; instead, they are more commonly seen in conditions like hypothyroidism.
4. A client is receiving heparin therapy. Which of the following laboratory tests should be monitored to evaluate the effectiveness of the therapy?
- A. Prothrombin time (PT)
- B. International normalized ratio (INR)
- C. Activated partial thromboplastin time (aPTT)
- D. Complete blood count (CBC)
Correct answer: C
Rationale: Activated partial thromboplastin time (aPTT) is the most appropriate laboratory test to monitor the effectiveness of heparin therapy. Heparin works on the intrinsic pathway of the coagulation cascade, and monitoring aPTT helps assess its anticoagulant effect. Therapeutic levels of aPTT for clients on heparin therapy are typically 1.5 to 2.5 times the control value. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor warfarin therapy, which acts on the extrinsic pathway of the coagulation cascade. Complete blood count (CBC) is not specific for monitoring the effectiveness of heparin therapy.
5. The nurse is preparing a client for discharge after a myocardial infarction (MI). Which instruction is most important for the nurse to reinforce with the client?
- A. Avoid engaging in sexual activity for at least 6 weeks.
- B. Engage in moderate physical activity daily.
- C. Take prescribed medications even if you feel well.
- D. Return to work only when medically cleared.
Correct answer: C
Rationale: The most critical instruction for a client after a myocardial infarction is to continue taking prescribed medications even if they feel well. This is essential in preventing another myocardial infarction or other complications. Discontinuing medications prematurely can be detrimental to the client's recovery and may increase the risk of further cardiovascular events. Choices A, B, and D are incorrect because engaging in sexual activity, physical activity, or returning to work are important aspects of the client's recovery, but not as crucial as ensuring medication compliance to prevent further cardiac issues.
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