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