The use of venous blood gas in assessing arterial acid-base and oxygenation status - an analysis of aggregated data from multiple studies evaluating the venous to arterial conversion (v-TAC) method.

These data suggest thatv-TAC analysis may have a role in replacing ABGs, avoiding arterial puncture.Substantial data exists in patients with chronic hypercapnia and chronic baseexcess, acute hyper and hypocapnia, and in patients with relatively normal acidbase status, with similar bias and precision across groups and across studydata. Limited data exists for patients with acute and chronic base deficit.