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22258 Blood Gases and NA/K/IC, Arterial

Blood Gases and NA/K/IC, Arterial
Test Code: ABGL
Synonyms/Keywords
Blood Gas, Art. w/ Sodium, Potassium, Ionized Calcium​
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) and Sodium, Potassium, and Ionized Calcium​
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
Interference

Potassium is only stable for 20 minutes on ice. Longer delays will cause falsely elevated results.

Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
Diagnostic Treatment Center​ ​Monday through Sunday​ ​Less than 2 hours​ ​Radiometer
Marshfield​ Monday through Sunday​ Less than 2 hours​ Roche Cobas b221
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% ​
 
Sodium:
133-144 mmol/L.
Potassium:
Newborns (0-12 months):  3.3-5.9 mmol/L. 
>= 12 months:   3.4-5.1 mmol/L.
Ionized Calcium:
0-4 days: 4.3-5.5 mg/dL.
5-30 days: 4.8-6.0 mg/dL.
1 mo.-20 yrs.: 4.9-5.5 mg/dL.
>=20 yrs.: 4.7-5.5 mg/dL.
See Critical Value List for list of current critical values​
​ See Critical Value List for list of current critical values​
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
82803​ ​ ​ Gases, blood ​ ​
84295 ​ ​ ​  Sodium ​ ​
84132 ​ ​ ​ Potassium ​ ​
82330 ​ ​ ​ Calcium, ionized  ​ ​
Synonyms/Keywords
Blood Gas, Art. w/ Sodium, Potassium, Ionized Calcium​
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) and Sodium, Potassium, and Ionized Calcium​
Ordering Applications
Ordering Application Description
​Centricity ​Blood Gas, ABG/Lyte
​Cerner ​None
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
Interference

Potassium is only stable for 20 minutes on ice. Longer delays will cause falsely elevated results.

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) and Sodium, Potassium, and Ionized Calcium​
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% ​
 
Sodium:
133-144 mmol/L.
Potassium:
Newborns (0-12 months):  3.3-5.9 mmol/L. 
>= 12 months:   3.4-5.1 mmol/L.
Ionized Calcium:
0-4 days: 4.3-5.5 mg/dL.
5-30 days: 4.8-6.0 mg/dL.
1 mo.-20 yrs.: 4.9-5.5 mg/dL.
>=20 yrs.: 4.7-5.5 mg/dL.
See Critical Value List for list of current critical values​
​ 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
Marshfield​ Monday through Sunday​ Less than 2 hours​ Roche Cobas b221
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)		 Quantity Description Comments
82803​ ​ ​ Gases, blood ​ ​
84295 ​ ​ ​  Sodium ​ ​
84132 ​ ​ ​ Potassium ​ ​
82330 ​ ​ ​ Calcium, ionized  ​ ​
For most current information refer to the Marshfield Laboratory online reference manual.