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HelpTest Code CEA Carcinoembryonic Antigen
Laboratory Code
LAB57
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 | 6 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 – < 1 wk | 8.1 – 62.0 ug/L |
| 1 wk – 1 yr | ≤ 4.7 ug/L |
| 2 yrs – 18 yrs | ≤ 2.6 ug/L |
| ≥ 19 yrs | ≤ 5.0 ug/L |
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Tumour marker for colorectal and pancreatic cancer.
Increased level seen in smokers.
Service Code
31932
LOINC Code Information
83085-1
Alias
Embroyonic Carcinoma Antigen
Update
Last updated 10/03/2025