Question

500 ml 0.45% ns with heparin 25,000 u to infuse at 500 units/hr. what is the flow rate in ml/hr?

Answer 1

The flow rate of a 500 mL 0.45% NS with Heparin 25,000 U solution to be infused at 500 units/hr is 10 mL/hr.

Step-by-step explanation:

We need to calculate the flow rate in mL/hr of a solution with the given parameters. The solution is 500 mL of 0.45% NS with Heparin 25,000 U to be infused at 500 units/hr. The flow rate can be determined by setting up a proportion based on the concentration of Heparin in the solution and the desired infusion rate.

First, we determine how many units of Heparin are in the entire 500 mL bag:

• 0.45% NS means that there are 0.45 grams of NaCl per 100 mL, but this does not affect the amount of Heparin.
• Since there are 25,000 units of Heparin in 500 mL, there are 50 units/mL.

Next, we use the infusion rate to find the flow rate:

• If we want to infuse 500 units per hour and there are 50 units per mL, then we need to infuse 10 mL per hour to get 500 units.

So the flow rate is 10 mL/hr.