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. An elderly client with congestive heart failure (CHF) is admitted to the hospital. Which laboratory test result should the nurse expect to find?

• A. Elevated serum sodium level.
• B. Decreased brain natriuretic peptide (BNP) level.
• C. Increased serum creatinine level.
• D. Elevated hemoglobin and hematocrit levels.

Correct answer: C

Rationale: In clients with congestive heart failure (CHF), impaired cardiac function can lead to decreased renal perfusion, resulting in elevated serum creatinine levels. Therefore, an increased serum creatinine level is a common laboratory finding in CHF clients, indicating possible renal impairment.

3. A client with chronic renal failure is prescribed erythropoietin (Epogen). Which outcome indicates that the medication is effective?

• A. Increased urine output.
• B. Improved hemoglobin levels.
• C. Decreased blood pressure.
• D. Stable potassium levels.

Correct answer: B

Rationale: The correct answer is B: Improved hemoglobin levels. Erythropoietin (Epogen) stimulates red blood cell production, leading to an increase in hemoglobin levels in clients with chronic renal failure. Monitoring hemoglobin levels is crucial to assess the effectiveness of erythropoietin therapy in managing anemia associated with chronic renal failure. While increased urine output, decreased blood pressure, and stable potassium levels are important parameters to monitor in clients with renal failure, they are not direct indicators of the effectiveness of erythropoietin therapy.

4. A client has developed hepatic encephalopathy secondary to cirrhosis and is receiving care on the medical unit. The client's current medication regimen includes lactulose four times daily. What desired outcome should the nurse relate to this pharmacologic intervention?

• A. Two to three soft bowel movements daily
• B. Significant increase in appetite and food intake
• C. Absence of nausea and vomiting
• D. Absence of blood or mucus in stool

Correct answer: A

Rationale: Lactulose is used in hepatic encephalopathy to reduce blood ammonia levels by promoting bowel movements. The desired outcome of lactulose therapy is typically two to three soft bowel movements daily, which helps in eliminating excess ammonia from the body, thus improving the client's condition.

5. A patient with diabetes insipidus is prescribed desmopressin. What is the primary purpose of this medication?

• A. Increase urine output
• B. Reduce blood sugar levels
• C. Decrease urine output
• D. Lower blood pressure

Correct answer: C

Rationale: Desmopressin is prescribed to decrease urine output in patients with diabetes insipidus. It works by increasing water reabsorption in the kidneys, helping to control fluid balance in the body.

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