A patient needs 35% dextrose 500 mL. The pharmacy only has 70% dextrose 1000 mL

Question

A patient needs 35% dextrose 500 mL. The pharmacy only has 70% dextrose 1000 mL

 

How much concentrate will you need?
300 mL
500 mL
250 mL
350 mL

How much diluent will you need?
200 mL
150 mL
500 mL
250 mL

Answer 1

You take 250 ml of the concentrate (70%) and add 250 ml (you now have 500 ml) of the dilute.