Question

The RN has a 20mL vial of heparin labeled 10,000units/mL. Ordered concentration is to mix 25,000 units of heparin per 250 mL NS. How many mL of heparin will RN add to 250mL bag of NS?

Answer 1

To prepare the 250 mL bag of normal saline with an ordered concentration of 25,000 units, the RN will need to add 625 mL of heparin.

Step-by-step explanation:

To calculate the amount of heparin that the RN needs to add to the 250 mL bag of normal saline (NS), we can use the equation:

(Heparin Concentration) x (Heparin Volume) = (Ordered Concentration) x (NS Volume)

Let's plug in the given values: 10,000 units/mL x (Heparin Volume) = 25,000 units/250 mL

Now, we can solve for the Heparin Volume:

Heparin Volume = (25,000 units x 250 mL) / 10,000 units/mL = 625 mL