ATI LPN
LPN Pharmacology Practice Test
1. A healthcare professional is reviewing laboratory results for a client with rheumatoid arthritis prescribed methotrexate. Which of the following laboratory results should the healthcare professional report to the provider?
- A. WBC count 1,200/mm³
- B. Hemoglobin 14 g/dL
- C. Platelets 150,000/mm³
- D. Blood glucose 110 mg/dL
Correct answer: A
Rationale: A WBC count of 1,200/mm³ indicates leukopenia, a serious side effect of methotrexate that can lead to increased risk of infections. It is crucial to report this finding promptly to the provider for further evaluation and possible adjustments in the treatment plan. Choices B, C, and D are within normal ranges and do not represent significant concerns related to methotrexate therapy in this context.
2. A client with myocardial infarction (MI) has been transferred from the coronary care unit (CCU) to the general medical unit with cardiac monitoring via telemetry. The nurse assisting in caring for the client expects to note which type of activity prescribed?
- A. Strict bed rest for 24 hours
- B. Bathroom privileges and self-care activities
- C. Unrestricted activities because the client is monitored
- D. Unsupervised hallway ambulation with distances less than 200 feet
Correct answer: B
Rationale: After being transferred from the CCU to the general medical unit with cardiac monitoring, the client with MI is typically prescribed bathroom privileges and self-care activities. This approach allows for gradual recovery and mobility while still being closely monitored, promoting the client's overall well-being and independence. Choice A, strict bed rest for 24 hours, is too restrictive and not recommended for MI patients as it can lead to complications like deep vein thrombosis. Choice C, unrestricted activities, is also not appropriate as MI patients usually require monitoring and gradual re-introduction to activities. Choice D, unsupervised hallway ambulation with distances less than 200 feet, may be too strenuous for a client who just got transferred from the CCU and needs a more gradual approach to activity.
3. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which laboratory value should the nurse monitor to assess the effectiveness of the medication?
- A. Activated partial thromboplastin time (aPTT)
- B. Prothrombin time (PT) and international normalized ratio (INR)
- C. Platelet count
- D. Erythrocyte sedimentation rate (ESR)
Correct answer: B
Rationale: Prothrombin time (PT) and international normalized ratio (INR) are the laboratory values used to monitor the effectiveness of warfarin therapy. These values help ensure that the client is within the therapeutic range for anticoagulation. PT measures the time it takes for blood to clot, while INR standardizes PT results to minimize variations between laboratories. Monitoring these values is crucial to prevent complications such as bleeding or clot formation. Activated partial thromboplastin time (aPTT) (Choice A) is more commonly used to monitor heparin therapy. Platelet count (Choice C) assesses the number of platelets in the blood and is not specific to warfarin therapy. Erythrocyte sedimentation rate (ESR) (Choice D) is a non-specific marker of inflammation and is not used to monitor the effectiveness of warfarin therapy.
4. A client reports chest pain that is unrelieved by three doses of nitroglycerin taken 5 minutes apart. What is the nurse's next best action?
- A. Administer another dose of nitroglycerin.
- B. Call the healthcare provider immediately.
- C. Provide oxygen via nasal cannula.
- D. Place the client in a supine position.
Correct answer: B
Rationale: In the scenario described, the client's chest pain persists despite three doses of nitroglycerin, indicating a potentially severe cardiac issue like a myocardial infarction. The priority for the nurse in this situation is to involve the healthcare provider promptly. Calling the healthcare provider immediately is essential to ensure timely evaluation and appropriate intervention for the client. Administering more nitroglycerin without further assessment or instructions may not be safe and could delay necessary treatments. Providing oxygen or changing the client's position may offer some comfort but does not address the underlying potentially life-threatening condition, making these options less appropriate as the immediate next best action.
5. When providing teaching to a client with a new prescription for atorvastatin, which of the following instructions should the nurse include?
- A. Take the medication in the evening.
- B. Take the medication with food.
- C. Increase your intake of grapefruit juice.
- D. Avoid consuming dairy products.
Correct answer: A
Rationale: The correct instruction for a client with a new prescription for atorvastatin is to take the medication in the evening. Atorvastatin is more effective when taken at night because cholesterol synthesis is higher during this time. This timing helps optimize the drug's cholesterol-lowering effects and enhances its overall efficacy in managing lipid levels. Choices B, C, and D are incorrect. Taking atorvastatin with food can decrease its absorption, grapefruit juice can interact with atorvastatin leading to increased side effects, and there is no specific need to avoid dairy products while on atorvastatin unless instructed otherwise by the healthcare provider.
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