Nursing Elites

1. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which laboratory value should the nurse monitor closely?

• A. Prothrombin time (PT)
• B. Hemoglobin level
• C. International Normalized Ratio (INR)
• D. Serum sodium level

Correct answer: C

Rationale: The correct answer is C, International Normalized Ratio (INR). The INR should be closely monitored in a client prescribed warfarin (Coumadin) to assess the effectiveness and safety of anticoagulation therapy. Monitoring the INR helps ensure that the client is within the therapeutic range for anticoagulation, reducing the risk of bleeding or clotting complications. Prothrombin time (A) is used to calculate the INR and monitor the effectiveness of warfarin therapy. Hemoglobin level (B) is important but not the primary lab value to monitor when a client is on warfarin. Serum sodium level (D) is not directly related to monitoring warfarin therapy.

2. While auscultating a client's heart sounds, which description should the nurse use to document a swishing sound related to blood turbulence or valvular defect?

• A. S1 S2
• B. S1 S2 S3
• C. Murmur
• D. Pericardial friction rub

Correct answer: C

Rationale: The correct answer is 'C: Murmur.' A murmur is auscultated as a swishing sound associated with blood turbulence caused by the heart or a valvular defect. Choices 'A: S1 S2' and 'B: S1 S2 S3' refer to normal heart sounds, specifically the closure of heart valves. 'D: Pericardial friction rub' is a dry, rubbing or grating sound caused by inflammation of the pericardial sac and is not associated with blood flow or valvular issues.

3. A client with a history of chronic heart failure is admitted with shortness of breath. Which assessment finding is most concerning?

• A. Crackles in the lungs
• B. Shortness of breath
• C. Elevated liver enzymes
• D. Heart rate of 100 beats per minute

Correct answer: C

Rationale: Elevated liver enzymes are concerning in a client with chronic heart failure as they may indicate liver congestion or worsening heart failure, requiring immediate intervention. While crackles in the lungs and shortness of breath are common in heart failure, elevated liver enzymes specifically point towards possible liver involvement due to heart failure. A heart rate of 100 beats per minute can be expected in a client with heart failure due to compensatory mechanisms, but elevated liver enzymes signal a more severe condition.

4. A client with hyperthyroidism is admitted to the postoperative unit after subtotal thyroidectomy. Which of the client's serum laboratory values requires intervention by the nurse?

• A. Total calcium 5.0 mg/dL.
• B. Serum sodium 140 mEq/L.
• C. Serum potassium 4.0 mEq/L.
• D. Serum glucose 90 mg/dL.

Correct answer: A

Rationale: The correct answer is A. A calcium level of 5.0 mg/dL is critically low and could indicate hypoparathyroidism, a possible complication after thyroidectomy. Low calcium levels can lead to tetany, seizures, and cardiac dysrhythmias, requiring immediate intervention. Choices B, C, and D fall within the normal range and do not require immediate intervention in this scenario.

5. The nurse is caring for a client who is postoperative following a thyroidectomy. Which finding requires immediate intervention?

• A. Hoarse voice
• B. Slight difficulty swallowing
• C. Positive Chvostek's sign
• D. Pain at the incision site

Correct answer: C

Rationale: A positive Chvostek's sign indicates hypocalcemia, a common complication following thyroidectomy due to inadvertent parathyroid gland injury. Immediate intervention is needed to prevent severe hypocalcemia symptoms like tetany, seizures, and laryngospasm. Hoarse voice and slight difficulty swallowing are expected post-thyroidectomy and do not require immediate intervention. Pain at the incision site is common postoperatively and can be managed with appropriate pain relief measures.

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