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convert mL/hr to mcg/min |
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convert mL/hr to mcg/min |
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Example
A patient is on a norepinephrine drip infusing at 56 cc/hr. There is no titration table table at the bedside. The IV bag is labeled 32 mg norepinephrine in 500cc Dextrose 5%. How many mcg/min is the patient receiving? Use the example below to see how to solve this problem with the calculator.
rate = 56mL/hr
dose available = 32mg
mL available = 500mL
With the calculator, we see the patient is recieving 60 mcg/min of norepinephrine. This is a higher than recommended dose!!!
Formula
In this example, first determine how many milligrams/hour is being delivered by
the IV pump. The rate of the IV pump (mL/hr) is divided by the volume of
the IV bag (mL available), then multiply this result by the total amount of medication (mg) in
the IV bag.
|
rate |
x dose available |
becomes
56mL/hr |
x 32mg |
which = 3.58 mg/hr
Next, after the milligrams/hour has been determined, use the next formula to convert from milligrams/hour to mcg/min.
|
mg |
x 1000 |
becomes
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3.58mg |
x 1000 |
which is 59.7 mcg/min (yikes!)
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