ATI LPN
LPN Pharmacology Assessment A
1. The client is receiving anticoagulant therapy for atrial fibrillation. Which laboratory test should be monitored to determine the effectiveness of the therapy?
- A. Prothrombin time (PT) and international normalized ratio (INR)
- B. Activated partial thromboplastin time (aPTT)
- C. Platelet count
- D. Erythrocyte sedimentation rate (ESR)
Correct answer: A
Rationale: Prothrombin time (PT) and international normalized ratio (INR) are essential laboratory tests to monitor the effectiveness of anticoagulant therapy in clients with atrial fibrillation. These tests help ensure that the client is within the therapeutic range and are commonly used to assess the clotting ability of the blood. Monitoring PT and INR levels allows healthcare providers to adjust anticoagulant dosages as needed to prevent complications such as bleeding or thrombosis. Activated partial thromboplastin time (aPTT) is more commonly used to monitor heparin therapy, not anticoagulant therapy for atrial fibrillation. Platelet count assesses the number of platelets in the blood and is not a direct indicator of anticoagulant therapy effectiveness. Erythrocyte sedimentation rate (ESR) is a nonspecific marker of inflammation and is not used to monitor anticoagulant therapy.
2. The nurse is caring for a client with hypertension who is prescribed a thiazide diuretic. The nurse should check which parameter before administering the medication?
- A. Serum potassium level
- B. Blood pressure
- C. Heart rate
- D. Serum sodium level
Correct answer: B
Rationale: Before administering a thiazide diuretic to a client with hypertension, the nurse should check the blood pressure. Thiazide diuretics are prescribed to lower blood pressure, so assessing the client's blood pressure prior to administration helps to monitor the effectiveness of the medication and to ensure the client's safety. Checking the serum potassium level (Choice A), heart rate (Choice C), or serum sodium level (Choice D) are also important parameters in the care of a client on a thiazide diuretic, but the priority assessment before administering the medication is the blood pressure to evaluate the drug's effectiveness in managing hypertension.
3. The client with chronic stable angina is prescribed a beta blocker. The nurse is reinforcing instructions. What instruction should the nurse include?
- A. Take the medication with a meal.
- B. Report a pulse rate below 60 beats per minute.
- C. Discontinue the medication if dizziness occurs.
- D. Avoid drinking grapefruit juice.
Correct answer: B
Rationale: The correct instruction for the nurse to include is to advise the client to report a pulse rate below 60 beats per minute. Beta blockers are known to lower heart rate, and a pulse rate below 60 beats per minute may indicate bradycardia, a condition that requires medical attention. Option A, 'Take the medication with a meal,' is incorrect because beta blockers don't necessarily need to be taken with food. Option C, 'Discontinue the medication if dizziness occurs,' is incorrect because abrupt cessation of beta blockers can lead to rebound hypertension and other adverse effects. Option D, 'Avoid drinking grapefruit juice,' is unrelated to beta blockers' mechanism of action or side effects.
4. 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.
5. A client has a new prescription for furosemide. Which of the following statements should the nurse include in the teaching?
- A. Take the medication in the morning.
- B. Monitor for muscle weakness.
- C. Eat foods high in potassium.
- D. Expect weight gain.
Correct answer: C
Rationale: The correct statement that the nurse should include in the teaching for a client prescribed furosemide is to eat foods high in potassium. Furosemide can lead to potassium depletion (hypokalemia) due to increased urine output. Consuming potassium-rich foods like bananas, oranges, spinach, and potatoes can help prevent this electrolyte imbalance. Choices A, B, and D are incorrect because taking furosemide in the morning, monitoring for muscle weakness, and expecting weight gain are not directly related to the potential side effects or necessary dietary adjustments when taking furosemide.
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