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HelpTest Code CA199 CA 19-9
Additional Codes
| Epic Ordering Code | LAB777 |
| NBS code | LBC04029 |
| Service code | 31872 |
Specimen Requirements
Submit the following:
| Container: |
| Yellow Top |
Processing Requirements
Allow specimen to clot for 30 mins and centrifuge within 2 hours
Specimen type: Serum
Volume: 0.5mL
Specimen Stability
| Specimen Type | Serum |
|---|---|
| Ambient | Send the specimen to the laboratory immediately |
| Refrigerate | 7 days |
| Frozen | 3 months |
Specimen Condition
| Haemolysis | OK |
|---|---|
| Icterus | OK |
| Lipaemia | OK |
| Others | Not applicable |
Methodology
Chemiluminescent Immunoassay
Days and Times Performed
24 hrs, TAT 1 day
Reference Interval
| Age | |
|---|---|
| 0 – < 1yr | 0 – 64 U/mL |
| 1 – 18 yrs | 0 – 41 U/mL |
| ≥ 19 yrs | ≤ 37 U/mL |
Note: This test is performed on Abbott Alinity system (chemiluminescent immunoassay). Values obtained from this method should not be interpreted against another method as they may not be comparable. Results may be elevated in non-malignant conditions.
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Tumour marker for pancreatic cancer.
Update
Last updated 16/07/2026
LOINC Code Information
83084-4
Alias
Cancer Antigen 19-9
Carbohydrate Antigen 19-9
GI Cancer Antigen