How Do You Calculate IV Drip Rates for Medications?

AI Thread Summary
To calculate the IV drip rate for a patient weighing 70 kg with a prescription of 0.5 mg/kg/hr, the required dosage is determined to be 35 mg/hr. Given a bag containing 250 mg in 50 mL, the calculation shows that the infusion rate should be set at 7 mL/hr. The conversion process involves canceling units appropriately to ensure accuracy. The calculations confirm that 35 mg/hr is the correct dosage needed for the patient. Overall, the method used for determining the drip rate is validated as correct.
acehansen
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Homework Statement


Your patient weighs 70 kg the prescription states 0.5 mg/kg/hr. You have a bag of 250 mg in 50 mL. At what rate (mL/hr) will you set the pump?

Homework Equations


I don't think I have to convert the units of this equation, just cancel them out... but I'm not entirely sure.

The Attempt at a Solution


I tested it out, this is how i answered it
0.5/mg/kg/hr X 70kg = 35mg/hr

35 mg/hr X 50ml/250mg (I cancel out mg)
= 7ml/hr

I am not sure if I did this correctly.
 
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How many milligrams per hour does the whole of the patient need ?
35 mg/hr is fine.
you know 250 mg is 50 ml, so 35 mg /hr is 35/250 * 50 mg/hr * ml/mg
You and patient can rest assured that this is correct.

Welcome to PF :) (though this is more like artihmetic, isn't it ?)
 
BvU said:
How many milligrams per hour does the whole of the patient need ?
35 mg/hr is fine.
you know 250 mg is 50 ml, so 35 mg /hr is 35/250 * 50 mg/hr * ml/mg
You and patient can rest assured that this is correct.

Welcome to PF :) (though this is more like artihmetic, isn't it ?)

Thank You BvU. :)
 
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