Category:ABG

Arterial Blood Gas

Select the worst deviation from normal Arterial Blood Gases (ABG) as outlined on the APACHE II scoring table. Do not use venous gases.

FiO₂ ≤ 49% - Base your selection of the worst ABG on the worst PO2.

FiO₂ ≥ 50% - Base your selection of the worst ABG on the worst AaDO2. AaDO₂ Calculation: (AaDO₂ is the arterial-alveolar O₂ tension difference) AaDO₂ = (Fi02 X 713) - PO₂ - CO₂ e.g. (FiO₂ 0.5 X 713) - PO₂ 85-CO₂ 40 = AaDO₂ 231.5

• all arterial blood gas results (FiO2, PO2, CO2 & PH) should be obtain from the same specimen.TOstryzniuk 20:57, 5 March 2009 (CST)

• See APACHE Scoring table

This element is also collected for:

• Labs test counts

TOstryzniuk 20:07, 5 March 2009 (CST) Template:Stub