A nurse is caring for a client who is 1 hr postoperative following a left hip arthroplasty. Which of the following laboratory values indicates the nurse should notify the provider?

Blood glucose 98 mg/dL

BUN 18 mg/dL

Hemoglobin 8.6 g/dL

Potassium 3.5 mEq/L

Answer and Explanation

The Correct Answer is C

Choice C Hemoglobin 8.6 g/dL indicates the nurse should notify the provider because it is below the normal range of 12 to 18 g/dL and suggests blood loss or anemia, which can impair oxygen delivery to tissues and affect wound healing.

Choice a is not correct because blood glucose 98 mg/dL does not indicate the nurse should notify the provider because it is within the normal range of 70 to 110 mg/dL and does not indicate hyperglycemia or hypoglycemia, which can affect recovery.

Choice b is not correct because BUN 18 mg/dL does not indicate the nurse should notify the provider because it is within the normal range of 10 to 20 mg/dL and does not indicate renal impairment or dehydration, which can affect fluid and electrolyte balance.

Choice d is not correct because potassium 3.5 mEq/L does not indicate the nurse should notify the provider because it is within the normal range of 3.5 to 5 mEq/L and does not indicate hypokalemia or hyperkalemia, which can affect cardiac function and muscle contraction.

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Correct Answer is C

Explanation

Choice A reason: Isoniazid is an antitubercular drug that can cause urine to turn dark yellow or brown, not red-orange.

Choice B reason: Metoprolol is a beta-blocker that can cause urine to turn blue-green, not red-orange.

Choice C reason: Rifampin is an antitubercular drug that can cause urine to turn red-orange, as well as other body fluids such as saliva, sweat, and tears.

Choice D reason: Furosemide is a diuretic that can cause urine to become more concentrated and darker in color, but not red-orange.

A. Hyperactive deep tendon reflexes B. Hypoactive bowel sounds C. Positive Chvostek's sign D. Lethargy

Correct Answer is C

Explanation

Choice A: This is incorrect because hyperactive deep tendon reflexes are not associated with low serum calcium levels. Hyperactive deep tendon reflexes can indicate hypomagnesemia, hyperthyroidism, or spinal cord injury.

Choice B: This is incorrect because hypoactive bowel sounds are not associated with low serum calcium levels. Hypoactive bowel sounds can indicate ileus, peritonitis, or opioid use.

Choice C: This is correct because positive Chvostek's sign is associated with low serum calcium levels. Positive Chvostek's sign is a facial muscle spasm that occurs when tapping on the cheek near the ear. It indicates hypocalcemia, which can be caused by hemodialysis, renal failure, or parathyroid dysfunction.

Choice D: This is incorrect because lethargy is not associated with low serum calcium levels. Lethargy can indicate hypercalcemia, dehydration, hypoglycemia, or infection.

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A nurse is caring for a client who is 1 hr postoperative following a left hip arthroplasty. Which of the following laboratory values indicates the nurse should notify the provider?

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