Question

A solution of an antibiotic is supplied in a 5 mL vial with a concentration of 400 mg/mL. Two mL of this solution is drawn into a syringe which already contains 8 mL of water. The drug is to be infused into the vein of a patient at a dose rate of 40 mg antibiotic per minute, how long will it take to deliver the contents of the syringe into the vein?

Answer 1

A solution of an antibiotic is supplied in a 5 mL vial with a concentration of 400 mg/mL.

Two ml of this solution is drawn into a syringe which already contains 8 mL of water.

Now the syringe contains 10 ml of solution(8 ml water + 2 ml of the drug)

1 ml of medication contain 400 mg, so 2 ml contains 800 mg

That means the syringe contains 800 mg(because the syringe have 2 ml of the drug)

Now 10 ml = 800 mg

The drug is to be infused into the vein of a patient at a dose rate of 40 mg antibiotic per minute

Then the total 800 mg will take

Anser- It takes 20 minutes to deliver the content of the syringe into the vein.