Venous Oxygen Normal and Critical Ranges

Hello, 
I’m hoping to get some input. Can anyone share what reference ranges you use for normal and critical (if any) venous oxygen values in your facility?

We’re currently conducting a normal range study on our Rapid Point 500s and epoc devices, and the vendor states the following in the IFUs:

“As per CLSI C46-A21 , arterial blood samples are preferred for blood gas analysis. Therefore, reference ranges for arterial blood gases may not be directly applied to venous and capillary blood gases. Note that there are conflicting reports16-21 regarding the validity of pO2 analysis performed on arterialized capillary blood samples, compared to arterial pO2. Variability in both capillary collection process and in capillary blood itself may affect test results for pH, pO2, pCO2, and calculated sO2 of capillary samples.”


I wanted to see what other facilities are using for normal and critical venous oxygen (pO₂) values. Does anyone include a comment on this result to ensure providers are utilizing the proper O2 value?

Thanks in advance for your help!