Carcino-embryonic Antigen (CEA, Carcinoembryonic Antigen)

Hospital or GP.
All Colchester & Ipswich samples: 7.5ml Brown Serum.
*If Urgent Colchester Request*: Colchester. If Routine Colchester or Ipswich Request: Ipswich.
Non-fasting. Patients taking biotin doses >5 mg/day should wait at least 8h before a sample is taken. If in doubt, please contact the laboratory.