Nursing Elites

1. The nurse is caring for a client with a history of deep vein thrombosis (DVT) who is receiving warfarin (Coumadin). Which laboratory value should the nurse monitor closely?

• A. Platelet count.
• B. Prothrombin time (PT).
• C. Hemoglobin level.
• D. White blood cell count.

Correct answer: B

Rationale: Prothrombin time (PT) is monitored to ensure therapeutic levels of warfarin and prevent bleeding complications.

2. A 56-year-old white male complains of intermittent dysphagia for the past three months, particularly with the ingestion of meat. He has no difficulties swallowing liquids. He has no history of smoking, uses no medications, and has had no weight loss. What test would be best to evaluate him?

• A. Upper endoscopy
• B. Chest/abdominal CT scan
• C. Barium swallow
• D. Esophageal manometry

Correct answer: C

Rationale: For a patient presenting with intermittent dysphagia, especially with solids like meat, a barium swallow is the most appropriate initial test. In this case, the classic presentation suggests a Schatzki’s ring, which is best visualized through a barium study. Upper endoscopy may not always visualize Schatzki’s rings effectively. Chest/abdominal CT scan and esophageal manometry are not the preferred tests for diagnosing Schatzki’s rings. Treatment for Schatzki’s rings often involves bougie dilatation, and no further therapy may be necessary.

3. A patient with deep vein thrombosis (DVT) is prescribed warfarin. Which dietary instruction should the nurse provide?

• A. Avoid foods high in vitamin K.
• B. Increase intake of dairy products.
• C. Limit intake of citrus fruits.
• D. Avoid high-sodium foods.

Correct answer: A

Rationale: Patients on warfarin should avoid foods high in vitamin K because vitamin K can interfere with the anticoagulant effect of the medication. Warfarin works by inhibiting vitamin K-dependent clotting factors, so consuming large amounts of vitamin K-rich foods may decrease the effectiveness of the medication. Choices B, C, and D are incorrect. Increasing intake of dairy products, limiting citrus fruits, or avoiding high-sodium foods are not directly related to the mechanism of action of warfarin or its dietary considerations.

4. The client with newly diagnosed hypertension is being taught about lifestyle modifications. Which recommendation should be made?

• A. Increase your intake of saturated fats.
• B. Limit your alcohol intake to two drinks per day.
• C. Engage in at least 150 minutes of moderate exercise per week.
• D. Use table salt liberally to season your food.

Correct answer: C

Rationale: Engaging in at least 150 minutes of moderate exercise per week is a key lifestyle modification recommended for individuals with hypertension. Regular exercise helps manage blood pressure, improve cardiovascular health, and overall well-being. It is important for the client to adopt a healthy lifestyle to control hypertension and reduce the risk of complications.

5. A client with liver failure is at an increased risk of bleeding due to the inability to synthesize prothrombin in the liver. What factor most likely contributes to this loss of function?

• A. Alterations in glucose metabolism
• B. Retention of bile salts
• C. Inadequate production of albumin by hepatocytes
• D. Inability of the liver to use vitamin K

Correct answer: D

Rationale: The correct answer is D. The liver's inability to use vitamin K is the most likely factor contributing to the loss of prothrombin synthesis in liver failure. Vitamin K is essential for the synthesis of prothrombin, a crucial clotting factor. In liver failure, impaired utilization of vitamin K leads to decreased production of prothrombin, increasing the risk of bleeding in affected individuals.

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