The previous answer is only partially right. You just didn't go far enough. 199 ml is what you should be left with in the bag (to get the correct strength), not withdraw from the bag.
See for yourself and follow the following process:
Set up the ratio equation: (what we have) 983(mg strength):250(ml volume) = (what we need) 783(mg strength): X (ml volume)
Now, divide 783 by 983 = 0.796 Then multiply 0.796 by 250 mL and the answer is: X=199mL.
Finally, we subtract 199 from 250…
250-199= 51
Withdraw 51 ml from the bag.
Rating
Remove 199mL from the Bag for 783mg by: David
983:250 = 783: X
divide 783 by 983 = 0.796
then multiply 0.796 by 250mL and the answer is:
X=199mL
Patient is prescribed 10g of Glucose. The glucose is presented as a 5% solution in 500ml Saline. How much of the 5% dextrose saline solution do you need