ATI LPN
LPN Pharmacology Practice Test
1. A client has a new prescription for metformin. Which of the following statements should the nurse include in the teaching?
- A. Take the medication with a full glass of water.
- B. Monitor for signs of hypoglycemia.
- C. Increase your fluid intake.
- D. Expect a metallic taste in your mouth.
Correct answer: C
Rationale: Increasing fluid intake is an important teaching point for clients starting metformin to prevent gastrointestinal discomfort, a common side effect of this medication. Metformin can cause gastrointestinal symptoms such as nausea, bloating, and diarrhea, which can be reduced by staying well-hydrated. Therefore, advising the client to increase their fluid intake will help minimize these side effects and improve medication tolerance. The other options are incorrect: Option A is a general instruction for taking medications but not specifically related to metformin. Option B is incorrect because metformin typically does not cause hypoglycemia but rather hyperglycemia. Option D is also incorrect as a metallic taste in the mouth is not a common side effect of metformin.
2. 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.
3. A client with a history of coronary artery disease (CAD) is being discharged with a prescription for aspirin. Which instruction should the nurse reinforce with the client?
- A. Take the aspirin on an empty stomach for better absorption.
- B. Stop taking the aspirin if you experience any stomach discomfort.
- C. Take the aspirin with food to reduce the risk of stomach irritation.
- D. Take the aspirin only when you have chest pain.
Correct answer: C
Rationale: The correct instruction is to take the aspirin with food to reduce the risk of stomach irritation. This is crucial for clients with a history of coronary artery disease as it helps minimize gastrointestinal side effects like irritation and bleeding. Option A is incorrect because aspirin should not be taken on an empty stomach to prevent stomach upset. Option B is incorrect because discontinuing aspirin at the first sign of stomach discomfort can be harmful, and a healthcare provider should be consulted instead. Option D is incorrect because aspirin is often prescribed for prevention in cardiovascular conditions, not just for chest pain relief.
4. 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.
5. 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.
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