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Alternative names, keywords |
Carcinoembryonic antigen |
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Samples required |
● Clotted blood (gold cap, 5 mL tube). Smaller tubes are available for paediatric samples. |
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Test indications |
Only recommended for serial monitoring of diagnosed tumour, or pre-op. |
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Factors affecting test performance/ results |
Samples should not be taken from patients receiving therapy with high biotin doses (i.e. > 5 mg/day) until at least 8 hours following the last biotin administration. In rare cases, interference due to extremely high titres of antibodies to analyte-specific antibodies, streptavidin or ruthenium can occur. Results should always be assessed in conjunction with the patient’s medical history, clinical examination and other findings. |
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Reference range |
Source: 95th percentile limit, Roche Cobas® CEA kit insert 2024-04, V7.0 * Range issued with results. |
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Turnaround time |
3 days |
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Enquiries |
Biochemistry (Automation) |
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Turnaround time |
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Enquiries |
Biochemistry (Automation) |