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Test Code 00002 Blood Gases, Arterial 

Performing Laboratory

MaineGeneral Medical Center

Specimen Requirements

Call Respiratory Therapy at 207-626-1309 for ordering instructions.

Day(s) Test Performed

Monday - Sunday

Test Classification and CPT Coding

Not applicable

Methodology

Includes base excess, bicarbonate (HCO3), CO2 content (TCO2), O2 saturation, PCO2, pH, and PO2.

Reference Values

An interpretive report will be issued by Respiratory Therapy.

Critical values (automatic call-back)

PCO2:  <20 mmHg or >70 mmHg

PO2:  <40 mmHg

Bicarbonate:  <10 mmol/L or >45 mmol/L