Question

You recieved the following Order:

WP: 3456445625     RX: 103400 (06/08/09)

Vancomycin 10mg/kg x 12.1kg = 120mg

IV q 6 hours. Infuse over 1 hour

At your hospital pharmacy, you have Vancomycin 100mg/mL solution.

How much of this solution would you have to administer to the patient? ______________

Sometimes, although it is possible to measure the amount of solution required accurately, pediatric hospitals will routinely use a more dilute solution for ease of administration.

If you have vancomycin (100mg/mL) and sodium chloride available to you, how much of each ingredient is required to make a 5mg/mL dilution (make 100 mL)?

Vancomycin (100mg/mL)             __________________ mL NaCl Preservative Free Inj __________________ mL

How much of this diluted solution do you need for the order? __________________mL

Answer 1

Formula to give medication= Dosage to be given to the patient / Dosage available in hand * Quantity

so based on above data

• Dosage to be given to the patient = Inj Vancomycin 10mg/kg x 12.1kg = 120mg
• Dosage available in hand / Pharmacy = 100 mg/ml
• Quantity = 1ml = 1

So when we substitue the data in formula = 120/100* 1= 1.2 ml

The amount of Inj Vancomycin to be given to the patient is 1.2 ml

Take 98.8 ml NaCl and add 1.2 ml vancomycin to make 100 ml solution