A physician prescribes Vancomycin 20 mg/kg intravenous (IV). The patient weighs 110 lbs. The medication is available in vials which contain 500 mg per 8 mL. What should the nurse withdraw from the vial? (round to the nearest whole number)
The Correct Answer is ["16"]
To calculate the dosage of Vancomycin, first convert the patient's weight from pounds to kilograms, knowing that 1 kg equals 2.2 lbs. The patient weighs 110 lbs, which is equivalent to 50 kg (110 lbs / 2.2). Next, multiply the patient's weight in kilograms by the prescribed dosage of 20 mg/kg, resulting in a total dosage of 1000 mg (50 kg * 20 mg/kg). Since the vials contain 500 mg per 8 mL, divide the total dosage required by the amount per vial to find out how many milliliters should be withdrawn. This results in 16 mL (1000 mg / (500 mg/8 mL)).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. The low blood pressure (90/64) may indicate hypovolemia or shock but is not specific for ICP concerns.
B. This set of vital signs is concerning due to the extremely high blood pressure (220/46) combined with a very low heart rate (30) and low respiratory rate (6), which can indicate an autonomic response to increased ICP, potentially leading to Cushing's triad (hypertension, bradycardia, and irregular respirations).
C. Although the blood pressure is high (200/94), the heart rate is normal and the respiratory rate is stable, making this less alarming compared to option B.
D. The elevated temperature and abnormal heart rate (132) indicate potential fever and tachycardia, but the blood pressure (82/50) is low and does not directly indicate increased ICP.
Correct Answer is A
Explanation
A. A cold, pulseless foot indicates compromised blood flow, a medical emergency following an arteriogram. The nurse should immediately notify the physician to address potential vascular occlusion.
B. Elevating the limb can further impair circulation if blood flow is already compromised.
C. Covering the limb will not address the underlying issue of impaired circulation.
D. Repositioning may delay timely intervention in what may be a vascular emergency.
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