Home
HelpTest Code CA 19-9 Carbohydrate Antigen 19-9, ( CA 19-9), Serum
Additional Codes
LAB777
Performing Laboratory
Central Peninsula Hospital
Collection Method
Venipuncture
Container
Gold Top / Serum Separator / Additive Free
Specimen Type
Preferred
- Serum- Gold Top SST or Red Top
Acceptable
- Plasma- Light Green Top (Lithium heparin
Minimum Volume
0.5ml
Specimen Stability
| Ambient | 5 days |
| Refrigerated (4°C to 8°C) | 14 days |
| Frozen(-40°C to 0°C) | 3 months |
Reference or Target Ranges
<35 U/mL
Report Comment:
This test was performed on Roche Cobas analyzers using an electrochemiluminescence immunoassay. Results may vary between labs and aren’t directly comparable.
Reportable Units
U/mL
Critical Value
Not defined for this assay
Reasons for Rejection
| Hemolysis Threshold | 1000 mg/dL |
| Icterus Threshold | 66 mg/dL |
| Lipemia Threshold | 1500 mg/dL |
| Other | QNS, contaminated, improperly labeled, improper specimen type |
Performance Information
| Days and Time Performed | 24/7 |
| Expected Turn Around Time |
Stat: 1 hour |
| Stat Availability | Yes |
| Performing Bench | CPH Chemistry |
| Methodology/Method Description | Roche Cobas |
CPT Codes
86301
Last review/edit date
2025