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22261 Blood Gases, Arterial

Blood Gases, Arterial
Test Code: ABG
Synonyms/Keywords
Art.Blood Gas, ABG, PCO2, PO2​
Test Components
Panel includes Blood Gas (pH, partial pressure of carbon dioxide pCO2, partial pressure of oxygen pO2, bicarbonate HCO3, base excess BE, O2 Saturation)​
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ Whole Blood​ Balanced Heparin Syringe​ ​ 1 mL​ 0.4 mL​ 140 uL in a 1 CC Syringe​
Collection Processing Instructions
Ice pack cooling is not required if the sample is analyzed within 30 minutes.
Specimen Stability Information
Specimen Type Temperature Time
Whole Blood​ ​ Ambient​ 20 min​
On Ice Pack​ 45 min​
Rejection Criteria
Other anticoagulants such as EDTA, citrate, oxalate, and fluoride
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Diagnostic Treatment Center​ ​Monday through Sunday​ ​Less than 2 hours​ ​Radiometer
Eau Claire​ ​Monday through Sunday​ ​Less than 2 hours​ ​I-Stat
​Flambeau Hospital ​Monday through Sunday​ ​Less than 2 hours​ ​Gem 4000
Ladysmith Monday through Sunday​ ​Less than 2 hours ​Gem 4000
Lakeview Medical Center​ ​Monday through Sunday​ ​Less than 2 hours​ ​​I-Stat
Marshfield​ Monday through Sunday​ Less than 2 hours​ Roche Cobas b221 ​
​Minocqua Monday through Sunday​​ Less than 2 hours​​ ​​​I-Stat​
Neillsville ​Monday through Sunday​ ​Less than 2 hours​ ​​​I-Stat
​Wausau​Monday through SundayLess than 2 hours​​I-Stat
Test Information
Oxygen saturation results generated in satellite laboratories (CCU, ICU, PICU) by Respiratory Therapy staff or using I-Stat instruments are calculated from PO2. Oxygen-saturation results in the lab at Marshfield are obtained by CO-Oximetry and reported as Percent Fractional Oxyhemoglobin (FHbO2) which includes the contribution of any dys-hemoglobins (carboxy-, met-). Accordingly, when dys-hemoglobins are present, (Lab) FHbO2 results may differ significantly from O2 saturation (SO2) obtained by calulation or using pulse oximetry.​
Reference Range Information
Performing Location Reference Range
All Performing Sites
pH:  
 <=1 day: 7.29-7.45 
 >=2 days: 7.35-7.45
 
pCO2: 
 <=2 years: 27 - 41 mm Hg
 >=3 years: 35 - 45 mm Hg
 
pO2: 
 <=1 day: 54 - 95 mm Hg
 2 days - <70 years: 80 - 105 mm Hg
 70 years – 79 years: 70 - 90 mm Hg
 80 years – 89 years: 60 - 85 mm Hg
 >=90 years: 50 - 80 mm Hg
 
Calculated HCO3:  
 <=2 years: 17 - 24 mmol/L 
 >=3 years: 22 - 28 mmol/L
 
Base Excess: 
 <=2 years: -8.0 to 0.0 mmol/L 
 >=3 years: -3.0 to 3.0 mmol/L
 
Oxygen Saturation: 
 All Ages: 94 – 99% ​

​See Critical Value List for list of current critical values

Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
82803​ ​ ​ Gases, blood ​ ​
Synonyms/Keywords
Art.Blood Gas, ABG, PCO2, PO2​
Test Components
Panel includes Blood Gas (pH, partial pressure of carbon dioxide pCO2, partial pressure of oxygen pO2, bicarbonate HCO3, base excess BE, O2 Saturation)​
Ordering Applications
Ordering Application Description
​Centricity

​ABG (Arterial Blood Gases)

and

Blood Gas, Art. (Abg, Routine)

​Cerner ​Blood Gas Arterial
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)		 Pediatric Minimum Volume
(no repeat)
No​ Whole Blood​ Balanced Heparin Syringe​ ​ 1 mL​ 0.4 mL​ 140 uL in a 1 CC Syringe​
Collection Processing
Ice pack cooling is not required if the sample is analyzed within 30 minutes.
Specimen Stability Information
Specimen Type Temperature Time
Whole Blood​ ​ Ambient​ 20 min​
On Ice Pack​ 45 min​
Rejection Criteria
Other anticoagulants such as EDTA, citrate, oxalate, and fluoride
Test Components
Panel includes Blood Gas (pH, partial pressure of carbon dioxide pCO2, partial pressure of oxygen pO2, bicarbonate HCO3, base excess BE, O2 Saturation)​
Reference Range Information
Performing Location Reference Range
All Performing Sites
pH:  
 <=1 day: 7.29-7.45 
 >=2 days: 7.35-7.45
 
pCO2: 
 <=2 years: 27 - 41 mm Hg
 >=3 years: 35 - 45 mm Hg
 
pO2: 
 <=1 day: 54 - 95 mm Hg
 2 days - <70 years: 80 - 105 mm Hg
 70 years – 79 years: 70 - 90 mm Hg
 80 years – 89 years: 60 - 85 mm Hg
 >=90 years: 50 - 80 mm Hg
 
Calculated HCO3:  
 <=2 years: 17 - 24 mmol/L 
 >=3 years: 22 - 28 mmol/L
 
Base Excess: 
 <=2 years: -8.0 to 0.0 mmol/L 
 >=3 years: -3.0 to 3.0 mmol/L
 
Oxygen Saturation: 
 All Ages: 94 – 99% ​

​See Critical Value List for list of current critical values

For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Diagnostic Treatment Center​ ​Monday through Sunday​ ​Less than 2 hours​ ​Radiometer
Eau Claire​ ​Monday through Sunday​ ​Less than 2 hours​ ​I-Stat
​Flambeau Hospital ​Monday through Sunday​ ​Less than 2 hours​ ​Gem 4000
Ladysmith Monday through Sunday​ ​Less than 2 hours ​Gem 4000
Lakeview Medical Center​ ​Monday through Sunday​ ​Less than 2 hours​ ​​I-Stat
Marshfield​ Monday through Sunday​ Less than 2 hours​ Roche Cobas b221 ​
​Minocqua Monday through Sunday​​ Less than 2 hours​​ ​​​I-Stat​
Neillsville ​Monday through Sunday​ ​Less than 2 hours​ ​​​I-Stat
​Wausau​Monday through SundayLess than 2 hours​​I-Stat
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
82803​ ​ ​ Gases, blood ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.