Test Directory

Test Code
CA279
Test Name
Cancer Antigen 27.29
CPT Codes
86300
Expected Turnaround Time
1 - 2 day
Clinical Utility
CA 27.29 may be useful for monitoring patients for metastatic breast cancer.
Specimen and Container Info

Specimen Type: Serum

Preferred Collection Container: Gold Top, Serum Separator

Alternate Collection Container: Red Top, Plain

Desired Specimen Volume: 1 mL

Collection Instructions
  1. Collect a gold top, serum separator tube via venipuncture.
Processing and Submission Instructions
  1. Separate serum from cells.
  2. Transfer 1 mL of serum to a clear aliquot tube (screw cap).
Transport Instructions
Transport to the laboratory refrigerated.
Stability Requirements

Room Temperature

7 days

Refrigerated

7 days

Frozen

28 days
Causes for Rejection
  • Gross hemolysis
Methodology
Immunoassay
Reference Intervals
See patient report.
Alternate Names
  • Cancer Associated Breast Antigen (CABA)
  • Carbohydrate Antigen 27.29
  • Breast Carcinoma Associated Mucin Antigen
Reference Lab
Quest Diagnostics Nichols Institute
Testing Schedule
Routine, Monday - Saturday