| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Cancer Antigen (CA) 19-9
MessageFor Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.
Test Code
CA199
Alias/See Also
Cancer Antigen 19-9;
CA19-9
CA19-9
CPT Codes
86301
Preferred Specimen
serum
Minimum Volume
1 mL
Instructions
Avoid hemolysis. Allow to clot in an upright position for 30 minutes. Centrifuge 10 minutes. Keep tightly stoppered.
Transport Container
Original tube preferred, may be sent in a screw-top transfer tube.
Transport Temperature
Refrigerated
Specimen Stability
Room Temperature = 5 days
Refrigerated = 14 days
Frozen = 3 months
Refrigerated = 14 days
Frozen = 3 months
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis, Lipemia, incorrect specimen type, insufficient sample volume, improper storage conditions, exceeds specimen stability guidelines, contaminated sample.
Methodology
immunoassay
Setup Schedule
Daily
TM
TM
Report Available
1 day
Clinical Significance
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. CA 19-9 should not be used as a screening test.
Performing Laboratory
Compunet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine, OH 45439
Last Updated: November 13, 2023
