Is this correct?

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I'm practicing my math and was wondering if im doing this correctly?

Order 10 mcg dopamine, the patient weighs 140 pounds. Dopamine comes in 300mg/350ml, what is the IV rate?

140 lbs / 2.2 = 63.63

10 mcg / 1,000 = 10,000 mg

63.63 x 10,000 = 636,300 mg

636,300 mg / 300 mg x 350 = 742,350ml? I know this is incorrect, help please!!

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If you're doing an IV rate then you will finish with ml/hr. From what you typed out, there has to be some info missing. Double check and see if maybe you left out some info.

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Specializes in Utilization Management.

Dopamine is usually dosed as "mcg/kg/min"...

So if dopamine is ordered 10mcg/kg/min and you want to find the mL/hr flow rate with what's available (Dopamine 300mg/350mL):

140lbs/2.2 = 64kg

So the dose will be 640mcg/min...you've got 300mg/350mL, so convert 300mg to mcg (300mg = 300000mcg)

300000mcg/350mL = 640mcg/XmL X= 0.75mL

0.75mL/1min = XmL/60min X=45mL/hr

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Hey guys I checked the problem and the last sentence says what is the pump rate? So I just divide that by 24 hours?

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Hey boogs what does the last sentence imply? Sorry I'm bad in math, so 0.75ml would be 1 min and 60mins?

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10mcg=0.01mg

0.01 x 63.63 =0.6363 or 0.64mg

300mg = 0.64 mg

-------- -----------

350ml x mL

300x = 350 x 0.64

x= 0.746 or 0.75 mL

I tried to redo your computation. You need to write the entire question so we can help you.

Hope this helps.

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0.75 mL per minute

45 mL per 60 minutes or every hour

1080 mL day or 24 hours

I used ratio and proportion to get all these answers.

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Lavendar59, thank you! It does!!!

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