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Test Code ABG Arterial Blood Gases, Whole Blood

Performing Laboratory

North Ottawa Community Hospital

Specimen Requirements

Specimen Type: Whole blood

Container/Tube: Lithium heparin blood gas syringe

Specimen Volume: 2 mL

Reference Values

pH

7.35-7.45

Critical values (automatic call-back): <7.2 or >7.6

pCO2

35-45 mm Hg

Critical values (automatic call-back): <20 mm Hg or >70 mm Hg

pO2

80-100 mm Hg

Critical values (automatic call-back): <45 mm Hg

HCO3

21-28 mmol/L

TCO2

22-29 mmol/L

% CO Hgb

0.5%-2.5%

% MET Hgb

0.4%-1.5%

SO2

95%-98%

O2 HEMOGLOBIN

95%-99%

BASE EXCESS

-2 to +3

Day(s) Test Set Up

Daily

Methodology

Includes pH, pCO2, pO2, HCO3, TCO2, base excess, MET Hgb, CO Hgb, O2 Hgb, and SO2.

Test Classification and CPT Coding

82805