Cancer Antigen (CA) 19-9

Alternate Name: Ca19-9

SAL Code:

500

CPT:

86301

Loinc:

24108-3

Turn Around Time:

1 Day

Setup:

Daily

Units:

U/mL

Department:

Tumor Markers

Specimen Requirements:

Primary Tube:

SST

Primary Substance:

Serum

Temperature

Period

Stable Ambient:

8 Hours

Stable Fridge:

2 Days

Stable Frozen:

28 Days

Rejection Criteria:

Gross hemolysis; lipemia; improper labeling

Clinical Info:

A large percentage of patients with gastrointestinal tumors (such as pancreatic, liver, gastric, colorectal tumors) and some other malignancies have been shown to have elevated serum CA 19-9 levels. Serum CA 19-9 levels may be useful for monitoring disease activity or predicting relapse following treatment.

Additional Information:

Cancer antigen 19-9 (CA 19-9) is to monitor treatment response and recurrence of gastrointestinal, pancreatic,liver, and colorectal cancers as well as to help differentiate between cancer of the pancreas and other conditions. CA 19-9 is a tumor marker with low level of sensitivity and specificity. The CA19-9 assay should not be used as the sole determining factor to make any diagnosis.

Sample Collection:

Collect patient samples using standard phlebotomy techniques. Click here for additional collection instructions.
Separate serum or plasma from cells within 45 minutes of collection.

Test Information:

Components: