Wednesday, 1 March 2017

Universal fomula to calculate drops/min of any drug in M/B

Universal fomula to calculate drops/min of any drug in M/B

100*Dose*weight / amount of drug in M/B

Dose= mg/kg/hr or IU/kg/hr
Weight= kg
Amount of drug= mg or IU

Heparin:
 ampuole strength= 5000 IU/ml
Dose =IHD dose 60 IU/kg stat (not more than 4500 IU)
maintanance= 12-18 IU/kg/hr

Isoket:
Ampuole strenth= 10mg 
Dose = Antiischemic dose = 0.8-2 mg/hr
Antihypertensive dose= more than 2mg/hr

Dopamine: 
acts on alpha 1,2. Beta 1,2. Dopamine 1,2 receptors
Ampuole strength= 200mg
Dose:2-20 microgram/kg/min
Low dose =2-6mcg/kg/min acts only on dopamine receptors on kidneys
4-10mcg/kg/min acts on dopamine and beta receptors
>10-20mcg/kg/min acts on alpha beta n dopamine

Dobutamine:
Acts only on Beta 1,2 receptors
Ampuole strength= 250mg
Dose: same doses as that of dopamine

Norepinephrine:
Ampuole=4mg
Dose:
Acute hypotension and cardiac arrest=
 initial dose 8-12 mcg/min
Maintanance dose= 2-4 mcg/min
Septic shock:
0.01-3 mcg/kg/min

Phenylephrine:
Ampuole=10mg (1ml)
Dilute it in 20ml and make 500mcg/ml then dilute 1ml of this dilution in 10ml and make 50mcg/ml
Stat dose=150mcg
Infusion= 50mcg/min

Insulin:
DKA, HHS
initial 0.1U/kg stat IV
Maintanance: 0.1U/kg/hr

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