Nursing Elites

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

• A. Complete blood count (CBC)
• B. Prothrombin time (PT)/INR
• C. Partial thromboplastin time (PTT)
• D. Serum potassium level

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 55-year-old man presents with fatigue, pruritus, and jaundice. Laboratory tests reveal elevated bilirubin and alkaline phosphatase levels. Imaging shows dilated intrahepatic bile ducts and a normal common bile duct. What is the most likely diagnosis?

• A. Primary biliary cirrhosis
• B. Primary sclerosing cholangitis
• C. Gallstones
• D. Pancreatic cancer

Correct answer: A

Rationale: The constellation of symptoms including fatigue, pruritus, and jaundice, along with elevated bilirubin and alkaline phosphatase levels, and imaging findings of dilated intrahepatic bile ducts and a normal common bile duct, are classical features of primary biliary cirrhosis.

3. A patient with chronic heart failure is prescribed furosemide. What is the primary action of this medication?

• A. Increase cardiac output
• B. Reduce fluid retention
• C. Decrease heart rate
• D. Lower blood pressure

Correct answer: B

Rationale: Furosemide is a loop diuretic that acts by inhibiting sodium and chloride reabsorption in the loop of Henle, leading to increased diuresis. By reducing fluid retention, furosemide helps decrease the workload on the heart in patients with chronic heart failure. This medication does not directly increase cardiac output, decrease heart rate, or lower blood pressure as its primary action.

4. A client with chronic kidney disease (CKD) has an arteriovenous (AV) fistula for hemodialysis. Which finding should the nurse report to the healthcare provider immediately?

• A. No bruit or thrill over the AV fistula.
• B. Redness at the site of the AV fistula.
• C. Client's complaint of pain at the AV fistula site.
• D. Swelling of the hand on the side of the AV fistula.

Correct answer: A

Rationale: In a client with a chronic kidney disease who has an arteriovenous (AV) fistula for hemodialysis, the absence of a bruit (a humming sound) or thrill (vibratory sensation) over the AV fistula indicates a potential occlusion. This finding suggests inadequate blood flow through the AV fistula, which is a critical issue requiring immediate intervention to prevent complications such as thrombosis or clot formation. Reporting this absence of bruit or thrill promptly to the healthcare provider is essential to ensure timely assessment and management to maintain vascular access for hemodialysis.

5. What is the primary action of amlodipine when prescribed to a patient with hypertension?

• A. Increase heart rate
• B. Reduce blood pressure
• C. Lower cholesterol levels
• D. Decrease blood sugar levels

Correct answer: B

Rationale: Amlodipine is a calcium channel blocker that works by relaxing the blood vessels, leading to a reduction in blood pressure. This medication does not increase heart rate, lower cholesterol levels, or decrease blood sugar levels.

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