IV help

[kevindgalloway]

I thik i have the basics down but some problems still get to me. He's one example.

order: infuse amrinone 250mg in 500ml d5w at 5 mcg/kg/min

weight: 200 lbs

drop factor : 60 gtt per ml

how many gtt per min will deliver the required dose.

[roser13, ASN, RN]

Tell us how you would calculate this problem. We can't help you if we can't see how you're setting up and solving the calculation.

[KelRN215, BSN, RN]

Well... what has your work shown you so far? Here's a big hint- start converting units.

[Bedside_Life RN]

How would you start this problem? Tell us how you would begin to solve this and you will get help from there. Even if you are unsuccessful in your first try tell us what you think.

[strawberryluv, BSN, RN]

I think I got it.

First, convert the 250 mg of amrinone to mcg. You get 250,000 mcg amrinone. Then divide it into 500 mL to get the concentration in mcg/mL of ordered amrinone. That's 250,000 mcg/ 500 mL = 500 mcg/mL

Then convert your guy from pounds to kgs. That means he weighs 90.9 kg and multiply that it into 5 mcg to find out

that your guy gets 454.5 mcg/min of amrinone.

Next multiply that to 60 mins to get that concentration in an hour. So, he really gets 27,270 mcg amrinone/hour.

Then find out how much is that in mL by multiplying it from the concentration you figured out from the order (500 mcg/mL)

You end up with 27,270 mcg = 54.54 mL of amrinone.

Take that amount and go about what you normally would do to calculate drip rate so

54.54 mL amrinone/ 60 min * 60 gtts/mL = 54-55 gtts/min