Carbon Dioxide (CO2 Content)
| Label Mnemonic: | CO2 |
| Epic code: | LAB55 |
| Downtime form: | Doctor/Provider Orders - Pathology Core and Specialty Care Nursery |
Chemistry
6240 RCP
356-3527
6240 RCP
356-3527
Specimen(s):
Plasma
Collection Medium:
 |
| Plasma Separator Tube 4.5 mL |
Alternate
Collection Media:
Call laboratory for additional acceptable specimen collection containers.
Minimum:
3 mL whole blood from light green top tube or ONE
Microtainer® for
pediatric patients
Testing Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around
Time:
1 hour (upon receipt in laboratory)
Reference Range:
13 years and older: 22-29 mEq/L
0-12 years old: 18-27 mEq/L
Cord blood: 15-20 mEq/L
Critical value: <10 mEq/L and >=50 mEq/L
0-12 years old: 18-27 mEq/L
Cord blood: 15-20 mEq/L
Critical value: <10 mEq/L and >=50 mEq/L
Comments:
This test measures bicarbonate + dissolved CO2.
Test
Limitations:
Plasma Icterus: No significant interference up to an I index of 60 (approximate conjugated and unconjugated bilirubin concentration: 60 mg/dL). Hemolysis: Significant negative interference at an H index greater than 600. Lipemia (Intralipid): Significant negative interference at an L index greater than 1800 (approximate triglycerides concentration: 3600 mg/dL). There is poor correlation between turbidity and triglycerides concentration.
Methodology:
Enzymatic
CPT Code:
82374
See also:
Carbon Dioxide (CO2 Content)-Other, Body Fluid
Carbon Dioxide (CO2 Content)-Other, Body Fluid