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22259 Blood Gases and Na/K/Ic, Capillary

Blood Gases and Na/K/Ic, Capillary
Test Code: CBGL
Synonyms/Keywords
Blood Gas, Cap. 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), 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)
​NoWhole Blood​Heparinized capillary blood gas tube​300 uL​140 uL​
Collection Processing Instructions
For Capillary samples avoid milking or squeezing the puncture site. Place all capillary samples in a protective carrier on ice or cold pack for transport to the lab.
 
DO NOT introduce air into the collection tube.  Analyze immediately.​
Specimen Stability Information
Specimen Type Temperature Time
Whole Blood​ Ambient​ 30 min​
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
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
5-29 days: 4.8-6.0 mg/dL
1 mo.-20 yrs.: 4.9-5.5 mg/dL
>=20 yrs.: 4.5-5.3 mg/dL
​See Critical Value List for list of current critical values​
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
82803   ​ Blood gas ​
84295 ​  Sodium ​
84132  ​  Potassium​
82330  ​ Calcium, ionized​
Synonyms/Keywords
Blood Gas, Cap. 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), Sodium, Potassium, and Ionized calcium​
Ordering Applications
Ordering Application Description
​Centricity ​Blood Gas, Cap/NaKIC
​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)
​NoWhole Blood​Heparinized capillary blood gas tube​300 uL​140 uL​
Collection Processing
For Capillary samples avoid milking or squeezing the puncture site. Place all capillary samples in a protective carrier on ice or cold pack for transport to the lab.
 
DO NOT introduce air into the collection tube.  Analyze immediately.​
Specimen Stability Information
Specimen Type Temperature Time
Whole Blood​ Ambient​ 30 min​
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), 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
5-29 days: 4.8-6.0 mg/dL
1 mo.-20 yrs.: 4.9-5.5 mg/dL
>=20 yrs.: 4.5-5.3 mg/dL
​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   ​ Blood gas ​
84295 ​  Sodium ​
84132  ​  Potassium​
82330  ​ Calcium, ionized​
For most current information refer to the Marshfield Laboratory online reference manual.