Question

A prescription order calls for 500 g of dextrose.How many mL of a 70% dextrose solution will supply the amount of dextrose ordered. How many kcal are in the amount of dextrose ordered?If the next day another prescriber wrote to provide the patient with 170 kcal from carbohydrates, how many mL of the 70% dextrose solution would be required?

Answer 1

Answer =

A prescription order calls for 500 g of dextrose.

How many mL of a 70% dextrose solution will supply the amount of dextrose ordered.

70% dextrose means 70 gms of dextrose and make final volume  100 ml with Distilled water.

70 gms of dextrose -------- 100 ml Distilled water

500 gms of dextrose --------- ? ml

= 500 X 100 / 70

= 714.28 ml

714.28 ml of 70 % dextrose solution will supply the amount of dextrose ordered.

How many kcal are in the amount of dextrose ordered?

there are 3.4 kcal/g dextrose

The grams of dextrose ordered = 500 gms

kcal are in the amount of dextrose ordered = 500 X 3.4

= 1700 kcal

kcal are in the amount of dextrose ordered is 1700 kcal

If the next day another prescriber wrote to provide the patient with 170 kcal from carbohydrates, how many mL of the 70% dextrose solution would be required

500 gms of dextrose provide 1700 kcal

500 gms of dextrose ------------1700 kcal

? gms of dextrose ---------------- 170 kcal

= 500 X 170 /1700

= 50 gms of dextrose

714.28 ml of 70 % dextrose solution will supply the amount of dextrose i.e. 500 gms of dextrose

714.28 ml of 70% dextrose ------------ 500 gms of dextrose

? ml of 70% dextrose ------------------ 50 gms of dextrose

= 714.28 X 50 /500

= 71.42 ml

another prescriber wrote to provide the patient with 170 kcal from carbohydrates, then 71.42  mL of the 70% dextrose solution would be required