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HelpTest Code CA199 CA 19-9
Laboratory Code
LAB777
Specimen Requirements
Specimen Type: Serum
Container/Tube: Gold Top (SSTII)
Volume: 5.0 mL
Minimum Volume: 0.5 mL serum
Collection Instructions: Allow specimen to clot for 30 mins and centrifuge within 2 hrs.
Specimen Stability
| Specimen Type | Serum |
|---|---|
| Ambient | 24 hours |
| Refrigerate | 7 days |
| Frozen | 3 months |
Methodology
Chemiluminescent Immunoassay
Days and Times Performed
24 hrs, TAT 1 day
Specimen Condition
| Gross Haemolysis | Alert/Reject |
|---|---|
| Icterus | OK |
| Lipaemia | OK |
| Others | Not applicable |
Reference Interval
| Age | |
|---|---|
| 0 – < 1yr | 0 – 64 U/mL |
| 1 – 18 yrs | 0 – 41 U/mL |
| ≥ 19 yrs | ≤ 37 U/mL |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Tumour marker for pancreatic cancer.
Service Code
31872
LOINC Code Information
83084-4
Alias
Cancer Antigen 19-9
Carbohydrate Antigen 19-9
GI Cancer Antigen
Update
Last updated 04/03/2025