At what mL/HR would you set your pump?

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The doctor ordered Magnesium Sulfate 4gm IV to be given over 20 minutes. Magnesium Sulfate come in 40gm/1000mL IV bottle.

Asked by Kristy, Last updated: Nov 21, 2024

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5 Answers

Bobby Rickets, Content Reviewer

Answered Mar 07, 2019

The correct answer is option 300mL/hr.
Since you need to give 4gm of magnesium sulfate over 20 minutes and it comes in 40gm/1000mL
You do the following:
Divide 4gm by 40gm and multiply by 1000mL
4/40 = 0.01

0.01* 1000 = 100
Divide one hour (60 minutes) by 20 and multiple the results by 100
60/20
3 * 100 = 300
Therefore, you will set the pump at 300mL/hour to administer 4gm Magnesium sulfate IV in 20 minutes.
Hope this helps.

John Adney

Answered Mar 06, 2017

4 gm/40 gm= 0.1 x1000 = 100 x 3 (20 min goes into 1 hr 3x) = 300 ml/hr

Kenice

Answered Feb 07, 2017

ML/Hr= Total vol/ # of hrs.
V=1000ml
time=20mins
60min=1hr
20min=0.3hr

ml/hr= 1000ml/0.3hr= 300ml/hr

Unspokenrx

Answered Feb 07, 2017

4gm convert 20 mins to hr . 20 / 60 = .333
20min x 1 hr = .333
60 min

4gm x 1000 ml= 4000 = 300
.333 hr 40gm 13.32

i'm not good on how to explain it well sorry ..