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Test Code LAB76 Blood Gases, Arterial

Reporting Title

ABG, Arterial

Methodology

Radiometer Analyzer

Performing Laboratory

OhioHealth Laboratory Services-GMC, DH, DMH, GMH, HMH, OMH, MH, PMH Respiratory Department and RMH, PMH AND MGH Core Laboratory

Specimen Requirements

Draw 2 mL of blood in a 3-mL heparinized syringe or a minimum of 0.5 mL of blood in a 1-mL heparinized syringe. Expel any air bubbles Use gauze or tissue to absorb the excess blood.  Cap syringe and mix by rolling syringe between palms for 15 seconds. Transport to the laboratory immediately. Specimen must be recieved in the laboratory within 30 minutes of draw. 

Note:  1. Include percent oxygen, liter oxygen inspiration, or room air on request form.

2. Label syringe with patient’s name (first and last) and date and actual time of draw.

Specimen Transport Temperature

Refrigerate: OK

Ambient: OK

Frozen NO

Reference Values

pH:  7.35-7.45

Critical values <7.2 or >7.6 

Alerting category: Always called within 1 hour

pCO2:  35-45 mm Hg

pO2

1-5 days:  60-70 mm Hg

6 days-64 years:  80-100 mm Hg

64-99 years:  75-85 mm Hg

Critical value  <45 mm Hg

Alerting category: Always called within 1 hour

Base excess:  -2.0-+ 2.0

HCO3:  22-26 mmol/L

O2 Saturation:  92-99%

Day(s) Test Set Up

Monday through Sunday; Continuously

Test Classification and CPT Coding

82805