Oxygen Delivery (DO2) Formula
Co x [(Hgb x SaO2 x 1.340 + ( PaO2 x 0.003)] x 10
10 is a conversion factor that fixes g/dL of Hgb & L/ min of CO
How much O2 is carried in arterial blood?
Oxygen Carrying capacity: CaO2
20 mL/ dL
How much O2 is being delivered to tissues?
Oxygen Delivery: DO2
1000 mL/ min
How much O2 is extracted by the tissues?
Oxygen Extraction Ratio: EO2
25% (reference for the whole body)
How much O2 is consumed by the tissues?
Oxygen Consumption: VO2
250 mL/ min
How much O2 is carried in the venous blood?
Venous Oxygen Content: CvO2
15 mL/ dL
Cardiac output Formula… and normal value?
HR x SV
Normal Value: 5-6 L/min
Cardiac Index Formula… and normal value
CO/ BSA
Normal value 2.8 to 4.2 L/min/m^2
Stroke Volumen Formula… and normal value
EDV - ESV
50 to 110 mL/ beat
OR
CO x 1000/HR
Stroke Volume index Formula and normal value
SV/ BSA
35 to 65 mL/beat/ m^2
Ejection Fraction Formula… and normal value
[(EDV- ESV) / EDV] x 100
60 to 70%
Mean Arterial Blood Pressure Formulas… and normal value
(1/3 x SBP) + (2/3 x DBP)
[(CO x SVR) / 80] + CVP
70- 105 mmHg
Pulse Pressure Formula … and normal value?
SBP - DBP
40 mmHg
Systemic Vascular Resistance formula and normal value?
[(MAP - CVP)/ CO] x 80
900-1400 dynes/ sec/ cm^-5
Systemic Vascular Resistance index formula and normal value?
[(MAP - CVP)/ CI] x 80
1500 to 2400 dynes/sec/ cm^-5/m^2
Pulmonary Vascular Resistance formula and normal value?
[(MPAP - PAOP) / CO] x 80
150 - 250 dynes/sec/ cm^-5
Pulmonary Vascular Resistance index formula and normal value
[(MPAP - PAOP) / CI] x 80
250 - 400 dynes/ sec/ cm^-5/ m^2