Smaller to larger units
3 decimals to the left or divide by 1000

Larger to smaller units
3 decimals to the right or multipy by 1000

Formula method of calculation
(D/H) x Q = X

Calculations based on weight
Drug dose x weight (kg) = patient's dose

Calculating IV Flow Rate (mL/hr)
Amt of Solution/Hrs to infuse = mL/hr

Calculating IV Flow Rate (gtt/min)
[Amt. of solution to be given (mL) X Drop factor (gtt/mL)] / Total minutes IV will run

IV Push Administration of Medication
(D/H) x Q = X
then
Amt of Solution/Hrs to infuse = mL/hr

Calculating Dosages Based on mg/min OR mg/hr (Basic Formula)
Step 1: Determine the dosage per hour (Amt of Solution/Hrs to infuse = mL/hr)
Step 2: Determine the IV flow rate by using the basic formula ((D/H) x Q = X)

Calculating Dosages Based on mcg/kg/min (Basic Formula)
Step 1: Convert the client's weight to kg
Step 2: Determine the dosage per hour
Step 3: Determine the IV flow rate by using the basic formula

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