I stumbled upon a formula for Dopamine and Dobutamine dosage calculations based on a CONSTANT. You know the mcg/kg/min..... ones.... Has anyone heard of these?
I tried it out a few times and BINGO... it worked.
So it is based on Single and Double Dose concentrations.
Dopamine Single Concentration = 13.3
Dopamine Double Concentration = 26.6
Dobutamine Single Concentration = 16.6
Dobutamine Double Concentration = 33.3
Sooooo... what does that all mean?
Well if you use the formula of:
Dose x kg
_________ = you get the amount in ml/hr to set on the pump
Order: Dobutamine 5 mcg/kg/min
Solution: Dobutamine 500/250 ml D5W (HINT: Conc. is considered DOUBLE)
Pt wt is 176 pounds
Step 1 you know is to convert lbs/kg = 80kg
----- = 12 ml/hr
Ok do it your way... what did you get?
Order Dopamine 2.5mcg/kg/min
Solution: Dopamine 800mg/500 ml
Pt wt 75kg
What is the concentration? Single? Double?
2.5 x 75
________ = 7ml/hr
long way 800mg x 1000 = 800,000 mcg / 500ml = 1600mcg/ml
2.5mcg x 75kg x 60min = 11250
---- = 7 ml/hr
Of course follow the rounding rules for your Program/Policy/Pump