Formulae

Body Surface Area BSA (m²) = SQRT( [Height(cm) x Weight(kg) ]/ 3600 )
 
e.g. BSA(m²) = SQRT([H182.88cm X W90.71kg]) / 3600 = √4.60 ≈ 2.14 mē


Cardiac Index (CI) = Cardiac Output (CO) / Body Surface Area (BSA)

Mean Arterial Pressure (MAP) = SBP + (2 x DBP) / 3

Pulmonary Vasular Resistance (PVR) = PAM - PCWP / CO X 80

Stroke Index (SI) = Stroke Volume (SV) / Body Surface Area (BSA)

Stroke Volume (SV) = is the amount of blood ejected by the left ventricle into the vasculature in one heart beat.

Systemic Vascular Resistance (SVR) = (MAP - CVP) / CO X 80