From: 36th International Symposium on Intensive Care and Emergency Medicine
EE = 1.44 × [3.941 × VO2(ml/min) + 1.11 × VCO2(ml/min)]
Respiratory quotient (RQ) = VCO2/VO2
EEVCO2 = 1.44 × [3.941 × VCO2/RQfixed + 1.11 × VCO2]