Epidural Infusion

by Emily
(AL)

An anesthesiologist requests that we prepare Bupivicaine 0.0625% in NS 250ml for an epidural infusion. How would you make this infusion using the following supplies? Bupivicaine 0.75% 30ml and NS 250ml bag.

Comments for Epidural Infusion

Click here to add your comments

answer
by: John T.

Start by calculating the actual amount of drug you have in your 0.75% solution:
0.75g/100ml = X/30ml

X = 0.225g of bupivacaine

Then calculate how much active drug you need to make the desired concentration:
0.0625g/100ml = X/250ml

X = 0.156g of bupivacaine

Now solve for the amount of 0.75% solution you will need to get 0.156g of bupivacaine:
0.225g/30ml = 0.156g/X

X = 20.8mls

Lastly, 250ml of NS - 20.8ml of 0.75% solution = 229.2ml of NS

Click here to add your comments

Join in and ASK your Questions! It's easy to do. How? Simply click here to return to Math questions.



Popular Pages

More Info