Useful Formulas

1. Body surface area
2. Body mass index
3. Respiratory formulas
   • A-a Gradient
   • O₂ Arterial Content
   • Mixed Venous O₂ content
   • Expected Arterial O₂
4. Hemodynamic Formulas
   • MAP
   • MPAP
   • SVR
   • PVR
5. Miscellaneous
   • Post-CPB Hematocrit
   • Creatinine Clearance
   • Anion Gap
   • Serum Osmolarity
   • Allowable Blood Loss
   • IV Bicarbonate Dose
   • Cerebral Perfusion Pressure