# Dosage Cal

Published

A critical care patient who weighs 80 kg has an order for 10 MCG/KG/MIN of dobutamine to be administered IV and regulated by an electronic pump. The supply of dobutamine is 500 MG in 250 mL OF D5W. I need Help, Please...

897 Posts

Specializes in CVICU. Has 1 years experience.

I'm confused what you need help with. Are you trying to calculate the flow rate (mL/hr)?

6 Articles; 11,333 Posts

Specializes in OR, Nursing Professional Development. Has 18 years experience.

What work have you done so far? Show us how you're setting up the problem so that we can provide direction.

5 Posts

I'm sorry. Yes I am trying to calculate the IV PB Flow rate? the answer I calculated was 50

Also ask me to , How many milliliters per day flow rate for IV BP? 200

How many hours per day his IV BP Flow? 4 hours, but am not sure if my answers are right.

5 Posts

1. 100ml/2 hours = 50ml/h

2. ml per day (24 hours); 50ml for 1 hour, for 2 hours it will be 100ml,( to infuse in 2 hours every 8 hours ) = 400

3. how many hours per day(24 hours) does does his IV BP flow? 8 hours

6 Articles; 11,333 Posts

Specializes in OR, Nursing Professional Development. Has 18 years experience.

Your answers in your last two posts make zero sense to the question in your original post. Are these more questions not related to the first question?

In the first question, you first need to determine how much of the med the patient needs. What dose does 10mcg/kg/min equal in mcg/min? From there, you should be able to calculate how many mLs per hour you will set the pump for.

You may find this thread very helpful for dosage calculations: Student Resources: Nursing Math

5 Posts

So sorry, you're right. I was looking at 2 different math problems and it put me off track.

5 Posts

and thank you, I am going to that link you suggested right now

83 Posts

Specializes in Cath Lab. Has 7 years experience.

A critical care patient who weighs 80 kg has an order for 10 MCG/KG/MIN of dobutamine to be administered IV and regulated by an electronic pump. The supply of dobutamine is 500 MG in 250 mL OF D5W. I need Help, Please...

10mcg x 80kg = 800 mcg/min

60 min x 800 mcg x 1 mg x 250 ml (multiply these together)

---------------------------------- (take top number and divide it by numbers below)

1 hour x 1 min x 1000 mcg x 500 mg

Setting it up like this. It allows you to keep track of your conversions. So minutes cross out, mcg crosses out, and mg crosses out because theres 2 of them, so youre left with ml/hr

Correct me if I'm wrong (math isnt my strong point )

• ## Care Plans Guide

Create well-written care plans that meets your patient's health goals.

• ## Specialties Guide

Choosing a specialty can be a daunting task and we made it easier.