Select the volume required to dispense 500 mg of vancomycin in 500 ml of D5W (5% dextrose in water).The IV is to be administered over 2 hours.Five grams of vancomycin is mixed in enough water to make 100 ml of final solution (W/V).

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Step 1: Convert 5 g to 5000 mg, using metric conversions. Step 2: Determine the concentration of the vancomycin available. 5000 mg/100 ml = 50 mg/ml. Step 3: Determine the dosage needed. 50 mg/ml = 500 mg/X; 50X = 500 ml; X = 500 ml/50; X = 10 ml.

Select the Volume Required to Dispense 500 Mg of Vancomycin