a patient with atrial fibrillation is prescribed warfarin which laboratory test should the nurse monitor to assess the effectiveness of the medication
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1. A patient with atrial fibrillation is prescribed warfarin. Which laboratory test should the nurse monitor to assess the effectiveness of the medication?

Correct answer: B

Rationale: The correct answer is B: Prothrombin time (PT)/INR. Warfarin affects the clotting ability of the blood by inhibiting vitamin K-dependent clotting factors. Monitoring the prothrombin time (PT) and international normalized ratio (INR) is crucial to assess the effectiveness and safety of warfarin therapy. These tests help determine if the patient is within the desired anticoagulation range to prevent either clotting issues or excessive bleeding.

2. A client with chronic kidney disease is prescribed a low-protein diet. Which laboratory result should the nurse monitor to evaluate the effectiveness of the diet?

Correct answer: A

Rationale: Blood urea nitrogen (BUN) levels should be monitored to assess the effectiveness of a low-protein diet in clients with chronic kidney disease. BUN levels reflect the breakdown of protein in the body, and a low-protein diet aims to reduce BUN levels to lessen the workload on the kidneys. Therefore, monitoring BUN levels is crucial in managing kidney function and evaluating the impact of dietary modifications. Serum potassium, serum calcium, and creatinine clearance are important parameters to monitor in clients with chronic kidney disease, but they are not specifically indicative of the effectiveness of a low-protein diet. Serum potassium levels are crucial in assessing electrolyte balance, serum calcium levels are important for bone health and nerve function, and creatinine clearance reflects kidney function overall, not just the impact of a low-protein diet.

3. A client with a newly created ileostomy has not had ostomy output for the past 12 hours and reports worsening nausea. What is the nurse's priority action?

Correct answer: B

Rationale: The nurse's priority action in this situation is to report signs and symptoms of possible obstruction to the healthcare provider. Lack of ostomy output and worsening nausea can indicate a potential obstruction, which requires immediate attention and intervention to prevent complications.

4. A client with a history of myocardial infarction (MI) is prescribed nitroglycerin (Nitrostat) for chest pain. Which instruction should the nurse provide?

Correct answer: D

Rationale: The correct instruction for a client prescribed nitroglycerin (Nitrostat) for chest pain is to place the tablet under the tongue. This route allows for rapid absorption of the medication, providing quick relief for chest pain associated with myocardial infarction.

5. In planning the turning schedule for a bedfast client, it is most important for the nurse to consider what assessment finding?

Correct answer: B

Rationale: A low Braden score indicates a high risk for pressure ulcers, making regular turning crucial to prevent skin breakdown.

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