Nursing Elites

1. A client who has a new prescription for warfarin (Coumadin) asks the nurse how the medication works. What explanation should the nurse provide?

• A. It dissolves blood clots
• B. It prevents the blood from clotting
• C. It thins the blood
• D. It decreases the risk of infection

Correct answer: B

Rationale: The correct answer is B: 'It prevents the blood from clotting.' Warfarin works by inhibiting the synthesis of vitamin K-dependent clotting factors in the liver, thereby preventing the formation of blood clots. Choice A is incorrect because warfarin does not dissolve existing blood clots but prevents new ones from forming. Choice C is partially correct but not as specific as choice B in explaining how warfarin works. Choice D is unrelated to the mechanism of action of warfarin and is incorrect.

2. A client with a history of congestive heart failure (CHF) is admitted with fluid volume overload. Which assessment finding should the nurse report to the healthcare provider?

• A. Weight gain of 2 pounds in 24 hours
• B. Presence of a cough
• C. Edema in the lower extremities
• D. Shortness of breath

Correct answer: D

Rationale: The correct answer is 'D - Shortness of breath.' In a client with congestive heart failure experiencing fluid volume overload, shortness of breath is a critical finding that indicates possible pulmonary congestion and worsening heart failure. This symptom requires immediate attention to prevent further complications. Choices A, B, and C are common findings in clients with CHF but are not as urgent as shortness of breath. Weight gain may indicate fluid retention, cough can be due to pulmonary congestion, and edema in lower extremities is a common manifestation of CHF, but none of these findings are as concerning as shortness of breath in this scenario.

3. Assessment findings of a 3-hour-old newborn include: axillary temperature of 97.7°F, heart rate of 140 beats/minute with a soft murmur, and irregular respiratory rate at 42 breaths/min. Based on these findings, what action should the nurse implement?

• A. Place a pulse oximeter on the heel
• B. Swaddle the infant in a warm blanket
• C. Record the findings on the flow sheet
• D. Check the vital signs in 15 minutes

Correct answer: C

Rationale: The correct answer is to record the findings on the flow sheet. These assessment findings are within normal limits for a 3-hour-old newborn. The axillary temperature of 97.7°F, heart rate of 140 beats/minute with a soft murmur, and irregular respiratory rate of 42 breaths/min are all expected in a newborn. No immediate intervention is needed, so the nurse should document these normal findings for future reference. Placing a pulse oximeter on the heel or swaddling the infant in a warm blanket is not indicated as the vital signs are within normal limits. Checking the vital signs in 15 minutes is unnecessary since the current findings are normal.

4. A client with cirrhosis is taking lactulose (Cephulac). Which finding indicates that the lactulose is having the desired effect?

• A. Two to three soft bowel movements per day
• B. Increased serum ammonia levels
• C. Decreased white blood cell count
• D. Soft, formed stool twice a day

Correct answer: A

Rationale: The correct answer is A: 'Two to three soft bowel movements per day.' Lactulose is prescribed to produce soft, regular bowel movements to reduce ammonia levels in clients with cirrhosis. This helps in preventing hepatic encephalopathy. Option B is incorrect because increased serum ammonia levels would indicate that lactulose is not effectively reducing ammonia levels. Option C is incorrect because lactulose does not directly affect white blood cell counts. Option D is incorrect because soft, formed stools twice a day may not be frequent enough to effectively reduce ammonia levels in clients with cirrhosis.

5. The nurse is assessing a client with chronic obstructive pulmonary disease (COPD) who has a respiratory rate of 32 breaths/min and a heart rate of 110 beats/min. What action should the nurse take first?

• A. Administer a bronchodilator
• B. Encourage deep breathing and coughing
• C. Assess the client's oxygen saturation level
• D. Obtain an arterial blood gas

Correct answer: C

Rationale: The correct action for the nurse to take first is to assess the client's oxygen saturation level. In a client with COPD and abnormal respiratory and heart rates, determining the oxygen saturation helps evaluate the adequacy of oxygen exchange and the severity of respiratory distress. Administering a bronchodilator (choice A) can be appropriate but assessing oxygen saturation takes priority. Encouraging deep breathing and coughing (choice B) may not address the immediate need for oxygenation assessment. Obtaining an arterial blood gas (choice D) is important but typically follows the initial assessment of oxygen saturation.

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