Nursing Elites

1. A client with a history of atrial fibrillation is prescribed warfarin. What is the nurse's priority teaching?

• A. Avoid eating foods high in potassium.
• B. Avoid foods high in vitamin K.
• C. Take the medication on an empty stomach.
• D. Take the medication at bedtime for best results.

Correct answer: B

Rationale: The correct answer is B: 'Avoid foods high in vitamin K.' Warfarin is an anticoagulant medication that works by interfering with vitamin K-dependent clotting factors. Therefore, consuming foods high in vitamin K can affect the medication's effectiveness. Choices A, C, and D are incorrect because: A) Warfarin is not affected by foods high in potassium; C) Warfarin should be taken with food to minimize gastrointestinal side effects; D) There is no specific requirement for taking warfarin at bedtime for best results.

2. The nurse is providing care for a client with heart failure who is prescribed furosemide. Which laboratory value should the nurse monitor closely?

• A. Calcium level
• B. Sodium level
• C. Magnesium level
• D. Potassium level

Correct answer: D

Rationale: The correct answer is D: Potassium level. Furosemide is a loop diuretic that can cause potassium loss, leading to hypokalemia. Monitoring potassium levels is crucial to prevent complications such as cardiac arrhythmias. While calcium, sodium, and magnesium levels are important in various conditions and treatments, they are not the primary electrolyte affected by furosemide.

3. A client with diabetes mellitus is experiencing hyperglycemia. What laboratory value should the nurse monitor to evaluate long-term glucose control?

• A. Blood glucose level
• B. Glycosylated hemoglobin (A1C)
• C. Urine output
• D. Serum ketone level

Correct answer: B

Rationale: The correct answer is B: Glycosylated hemoglobin (A1C). Glycosylated hemoglobin reflects long-term glucose control over the past three months. Monitoring blood glucose levels provides information on the current glucose status and immediate control, but it does not give a comprehensive view of long-term control. Urine output and serum ketone levels are important indicators for other aspects of diabetes management, such as hydration status and ketone production during hyperglycemic episodes, but they do not directly reflect long-term glucose control.

4. A client receiving lactulose for hepatic encephalopathy needs evaluation. Which assessment should the nurse prioritize?

• A. Percussion of the abdomen.
• B. Blood glucose level.
• C. Serum electrolytes.
• D. Level of consciousness.

Correct answer: D

Rationale: The correct answer is D: Level of consciousness. When managing hepatic encephalopathy with lactulose, monitoring the client's level of consciousness is crucial as it is a key indicator of the therapeutic response to lactulose in reducing ammonia levels. Changes in consciousness can reflect the effectiveness of treatment and the progression of hepatic encephalopathy. Option A, percussion of the abdomen, is not directly related to evaluating the response to lactulose. Option B, blood glucose level, is important but not the priority in this context. Option C, serum electrolytes, while significant in liver disease, do not directly assess the impact of lactulose therapy on hepatic encephalopathy.

5. A client is admitted with a large bowel obstruction. What finding should the nurse report immediately?

• A. Absence of bowel sounds in all four quadrants.
• B. Abdominal distention with a firm, rigid abdomen.
• C. Frequent, small, liquid stools.
• D. Nausea and vomiting that worsens after meals.

Correct answer: B

Rationale: Abdominal distention with a firm, rigid abdomen is a concerning sign that may indicate perforation, which requires immediate intervention. The rigidity suggests a complication of the large bowel obstruction. Absence of bowel sounds in all four quadrants, option A, is a common finding in a bowel obstruction but not as alarming as a rigid abdomen. Frequent, small, liquid stools, option C, are not typical findings in a large bowel obstruction; instead, constipation is more common. Nausea and vomiting that worsens after meals, option D, are also common symptoms of a bowel obstruction but do not indicate an immediate life-threatening complication like a perforation.

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