Arterial O2 Content (CaO2) + O2 Delivery (DO2)
Arterial oxygen content CaO2 = 1.34*Hb*SaO2 + 0.003*PaO2, and O2 delivery DO2 = CaO2*cardiac output*10.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Hemoglobin
- 15 g/dL
- SaO2
- 98 %
- PaO2
- 100 mmHg
- Cardiac output
- 5 L/min
Result: CaO2 20.01 mL O2/dL; DO2 1000 mL O2/min.
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Hemoglobin
- SaO2
- PaO2
- Cardiac output
How this is calculated
Oxygen-transport physiology (Marino PL, The ICU Book, 4th ed., 2014). CaO2 = (1.34 x Hb x SaO2/100) + (0.0031 x PaO2); DO2 = CaO2 x cardiac output x 10.
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.