Thursday, July 21, 2011

SOME FORMULAS

• CPP = MAP - IP
(Cerebral Perfusion Pressure) (Mean Arterial Pressure) (Intracraneal Pressure)
• MAP = CO x TPR
(Cardiac Output) (Total Peripheral Resistance)
• CO = HR x SV
(Heart Rate) (Stroke Volume)
• TPR = Viscocity / radius4



Some Respiratory Formulas
• VTotal = VDead Space + VAlveolar

• Vmin = TV x RR

• TV = 10-15 cc/Kg 
Example:
• VTotal = VDead Space + VAlveolar
     5000             40%              ??  = 3000
• Vmin = TV x RR
     5000      500   x  10
• TV = 10-15 cc/Kg 

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