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HelpTest Code COOX VEN Co-oximetry, Venous
Additional Codes
LAB2254
Performing Laboratory
Central Peninsula Hospital
Collection Method
Venipuncture
Container
Dark green top tube (Lithium Heparin)
Specimen Type
Preferred
- Dark green top tube (Lithium Heparin)
Acceptable
- Heparinized Syringe
Minimum Volume
100μl for co-oximetry analysis only
Specimen Stability
Samples should be analyzed within 15 minutes from draw to optimize specimen quality. Testing should not be delayed more than 30 minutes from collection.
Reference or Target Ranges
| COMPONENT | Age | Reference Range |
| O2 Hb (%) | All ages | 60-80 |
| met Hb (%) | All ages |
0-1.5
|
| CO Hb (%) |
All ages |
0.5-1.5
|
CO Hb (%) report comment:
Normal environmental exposure: 0.5 - 1.5%
Smokers: < 10%
Toxic concentration: ≥ 20%
Reportable Units
Varies
Critical Value
| Component | Age | Critical Low | Critical High |
| CO Hb (%) | All ages | Not defined for this assay | ≥20 |
Reasons for Rejection
| Hemolysis Threshold | N/A |
| Icterus Threshold | N/A |
| Lipemia Threshold | N/A |
| Other | QNS, contaminated, improperly labeled, improper specimen type |
Performance Information
| Days and Time Performed | 24/7 |
| Expected Turn Around Time |
Stat: 30 Minutes |
| Stat Availabilty | Yes |
| Performing Bench | CPH Chemistry |
| Methodology/Method Description | GEM Premier 5000 |
CPT Codes
82375
Last review/edit date
2025