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Test Code CA199 Carbohydrate Antigen 19-9, Serum

Performing Laboratory

ChristianaCare-Newark Campus

Methodology

Chemiluminescent Microparticle Immunoassay (CMIA)

Specimen Requirements

Container/Tube:  Preferred: 4.5 mL Lithium Heparin (Mint Green top PST Gel) tube

Acceptable: 5.0 mL SST (Gold top) tube or 6.0 mL Serum (Red top) tube

Specimen:  Full tube
Collection Instructions:

Note:  Label tube with patient’s full name and 1 additional unique patient identifier such as date of birth, medical record number, emergency ID number, or financial number. Date and time of draw, collector’s initials, and type of specimen are also required.

Reference Values

<35 U/mL

ChristianaCare Laboratory uses chemiluminescent microparticle immunoassay (CMIA) technology for the quantitative determination of this test on the Abbott Alinity i immunoassay platform. Tumor marker results determined using different manufacturers methods may not be comparable. Serial measurements over time using same methodology and platform is recommended.

Day(s) Test Set Up

Monday through Friday

Routine Turnaround Time:  not available

STAT Turnaround Time:  not available