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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Nursing Elites

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ATI Adult Medical Surgical

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. The client is receiving intravenous (IV) morphine for pain control. Which assessment finding requires the most immediate intervention?

Correct answer: D

Rationale: A respiratory rate of 8 breaths per minute indicates severe respiratory depression, a life-threatening side effect of opioid therapy. Immediate intervention is crucial to prevent respiratory failure. Monitoring and managing respiratory status are critical in clients receiving opioids to prevent adverse events. Drowsiness, itching, and nausea are common side effects of morphine but are not as immediately life-threatening as severe respiratory depression.

3. When planning care for a 16-year-old with appendicitis presenting with right lower quadrant pain, what should the nurse prioritize as a nursing diagnosis?

Correct answer: B

Rationale: The priority nursing diagnosis for a client with appendicitis is the 'Risk for infection related to possible rupture of the appendix.' Appendicitis carries a risk of the appendix rupturing, which can lead to peritonitis, a life-threatening condition. Preventing infection through timely intervention and surgery is critical in the care of a client with appendicitis, making this nursing diagnosis the priority.

4. A client with coronary artery disease (CAD) is prescribed atorvastatin (Lipitor). Which laboratory value requires immediate intervention?

Correct answer: B

Rationale: An LDL level of 200 mg/dL is significantly elevated and requires immediate intervention to reduce the risk of cardiovascular events in a client with coronary artery disease (CAD). High LDL levels contribute to the development and progression of atherosclerosis, which can lead to complications like heart attacks and strokes. Lowering LDL levels is a key goal in managing CAD and preventing further cardiovascular damage. Total cholesterol of 180 mg/dL, triglycerides of 150 mg/dL, and HDL of 40 mg/dL are within acceptable ranges and do not pose an immediate risk that necessitates urgent intervention.

5. A patient with epilepsy is prescribed phenytoin. What is the primary side effect the nurse should monitor for?

Correct answer: B

Rationale: Gingival hyperplasia, or overgrowth of the gums, is a common side effect of phenytoin. Patients should maintain good oral hygiene to minimize this effect.

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