To memorize doses of commonly used cardiac medications like inotropes, vasodilators a Rule of three is very handy and is very helpful in clinical practice. All medications described are diluted in 50 ml syringe and should be given by syringe pump only. Let first see normal dose range, normal starting dose of inotropes.
Adrenaline, Isoprenaline, Noradrenaline Normal dose range-0.01 to 0.5 ug/ kg/ min normal starting dose-0.1ug/kg/min General formula:-30ug/kg in 50 ml at 1ml/ hr=0.01ug/kg/min 300ug/kg in 50 ml at 1ml/hr=0.1ug/kg/min 3mg/kg in 50 ml at 1ml/hr=1ug/ kg/ min Donutamine/Dopamine Normal dose range 2.5 to 20 ug/kg/min Normal starting dose=5 ug/kg/min Take 3 mg /kg of dobutamine or dopamine in 50 ml and start 5ml/ hr, will give 5ug/kg/min dose to the pt. Nitroglycerin /Nitroprusside Normal dose range 0.5 to 5 ug/kg/min Normal starting dose: 1 ug/kg/min if you take NTG/ SNP…
