ATI LPN
LPN Pharmacology Assessment A
1. In monitoring the effectiveness of warfarin therapy for a client with a history of atrial fibrillation, which laboratory value should the nurse monitor?
- 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 crucial laboratory values to monitor the effectiveness of warfarin therapy in clients with atrial fibrillation. These values help ensure that the client is within the therapeutic range and that the anticoagulant effect of warfarin is appropriate. Monitoring aPTT, platelet count, or ESR is not directly related to assessing the effectiveness of warfarin therapy in these cases.
2. A client with a diagnosis of heart failure is being discharged. What information should the nurse emphasize to the client regarding the use of a daily weight log?
- A. Report any weight gain of more than 2 pounds in a day
- B. Weigh yourself after eating breakfast each morning
- C. Use the same scale each day to check your weight
- D. Record your weight daily and report any changes
Correct answer: A
Rationale: The correct answer is A: 'Report any weight gain of more than 2 pounds in a day.' Sudden weight gain of more than 2 pounds in a day may indicate fluid retention and worsening heart failure. This information is crucial for early intervention and monitoring of the client's condition. Weighing after eating breakfast (choice B) may not provide consistent results due to varying food and fluid intake. Using the same scale each day (choice C) ensures accuracy and consistency in weight measurements. Recording weight daily (choice D) is more frequent than necessary and may not be practical for all clients. It is essential to focus on significant weight changes to prevent unnecessary alarm or confusion.
3. A client has a new prescription for methotrexate. Which of the following instructions should the nurse include?
- A. Avoid consuming dairy products.
- B. Take the medication on an empty stomach.
- C. Increase your intake of folic acid.
- D. Monitor for signs of hyperglycemia.
Correct answer: C
Rationale: Increasing folic acid intake is crucial when taking methotrexate because the medication can lead to folic acid deficiency. Folic acid supplementation helps counteract this deficiency and reduces the risk of adverse effects associated with methotrexate therapy. Choices A, B, and D are incorrect. Avoiding dairy products is not specifically necessary for methotrexate therapy. Methotrexate is usually taken with food to reduce gastrointestinal side effects, so taking it on an empty stomach is not recommended. Monitoring for signs of hyperglycemia is not directly related to methotrexate use.
4. A client who has been taking prednisone is being assessed by a nurse. Which of the following findings should the nurse report to the provider?
- A. Weight gain
- B. Hyperglycemia
- C. Dry mouth
- D. Increased appetite
Correct answer: B
Rationale: Hyperglycemia is a significant finding in a client taking prednisone as it indicates the medication's impact on glucose metabolism. Prednisone can lead to increased blood sugar levels, which can be detrimental, especially in clients with diabetes or predisposition to hyperglycemia. Reporting hyperglycemia promptly to the healthcare provider is crucial for further evaluation and management to prevent complications. Choices A, C, and D are common side effects of prednisone but are not as concerning as hyperglycemia, which requires immediate attention to avoid potential adverse effects.
5. The nurse is assisting in the care of a client experiencing an acute myocardial infarction (MI). Which medication would the nurse expect to be administered to help reduce myocardial oxygen demand?
- A. Aspirin
- B. Morphine
- C. Atropine
- D. Lidocaine
Correct answer: B
Rationale: In the context of an acute myocardial infarction (MI), morphine is administered to relieve pain and reduce myocardial oxygen demand. By alleviating pain and anxiety, morphine helps reduce oxygen demand on the heart, which is beneficial in the setting of an MI. Aspirin, commonly used for its antiplatelet effects, helps inhibit platelet aggregation and is crucial in the management of MI to prevent further clot formation. Atropine is a medication used to treat symptomatic bradycardia by increasing heart rate, not commonly indicated in the management of acute MI. Lidocaine is used for ventricular dysrhythmias and is not typically given to reduce myocardial oxygen demand in an acute MI scenario.
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