CA19-9

 

Alternative names, keywords

 

Samples required

Clotted blood (gold cap, 5 mL tube).

Test indications

To monitor known cases of Ca pancreas. Also increased in cholestasis.

Factors affecting test performance/ results

Biotin may interfere - 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.

Reference range

up to 27 KU/L
Source: 95th percentile limit, Roche Cobas® CA19-9 kit insert,  2024-06, V8.0

Turnaround time

3 days

Enquiries

Biochemistry (Automation)