Agreement of pCO₂ in venous to arterial blood gas conversion models in undifferentiated emergency patients.

ABSTRACT:

Background

Venous blood gas sampling has replaced arterial sampling in many critically ill patients, though interpretation of venous pCO₂ still remains a challenge. Lemoël et al., Farkas and Zeserson et al. have proposed models to estimate arterial pCO₂ based on venous pCO₂. Our objective was to externally validate these models with a new dataset. This was a prospective cross-sectional study of consecutive adult patients with a clinical indication for blood gas analysis in an academic emergency department in Sweden. Agreement of pairs was reported as mean difference with limits of agreement (LoA). Vital signs and lead times were recorded.

Results

Two hundred and fifty blood gas pairs were collected consecutively between October 2021 and April

SUBMITTER: Jorg M 

PROVIDER: S-EPMC10663424 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature