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Epic Code LAB7760 CA15-3 Level

Important Note

Testing performed by Roche Cobas systems by Electrochemiluminescence Immunoassay.  Serum markers are not specific for malignancy. Assays using different manufacturers for methods may not be comparable. 

Test Name Alias

Cancer Antigen 15-3 Level | CA 15-3 |MUC-1 | Mucin-Like Carcinoma-Associated Antigen | SHOxxxx12 | 1230100434

Interface Order Alias

10558

Collection Instructions

Specimen Collection: Blood

 

Container(s): Gold Top (Serum Separator-SST Gel) or Light Green Top (Lithium Heparin Gel)

  • Preferred Volume to Collect: 4.5 mL
  • Minimum Volume to Collect: 2.0 mL
  • Neonate Volume to Collect: 1.0 mL
  • Capillary collect ok? Yes
  • Microtainer acceptable: Yes

Collection Instructions:

  • After collection, gently invert tube 8-10 times.
  • Specimen should be processed within 2 hours See Processing Instructions.

Processing Instructions (Laboratory, Outpatient or Off-site collection)

  • Processed Specimen: Serum or Plasma
  • Centrifuge/Spin: Yes
  • Aliquot: Yes
  • Processing Instructions:
    • Serum is preferred specimen type
    • Green Tube/Plasma: Centrifuge after collection.
    • Gold Tube/Serum: Allow blood to clot for 30 minutes in a vertical position and centrifuge within 2 hours.
    • Minimum volume: 1.0 mL Serum or Plasma
  • Transport Temperature: Refrigerated

Specimen Transport Temperature

Refrigerate

Specimen Stability

Ambient: 8 hours

Refrigerate: 72 hours

Frozen: aliquot plasma/serum for longer storage

Laboratory Retention: 72 hours

Test Frequency

Available 24 hours, usual TAT 1 day.

Reference Range

≤25.0 U/mL

Performing Department

Chemistry

Performing Department Laboratory Location

CHW: Corewell Health Reference Laboratory, Grand Rapids, MI
CHS: Corewell Health Lakeland St. Joseph Laboratory, St. Joseph, MI

Methodology

Method is Roche cobas Electrochemiluminescense Immunoassay.
Patient results determined by assays using different manufacturers for methods may not be comparable.

CPT

86300

CDM Code

3028630001

Epic Test ID

1230100434

LOINC

CA15-3: 6875-9

Mayo Access Code

SHOxxxx12

Reviewed Date

3/7/2024

Updated Date

3/14/2024 - Important note and Reference Range

4/23/2025 - Reference Range (previously ‰¤ 26.0 U/mL)

4/29/2025 - CHS info added

12/2/2025 - Gold Top Preferred specimen

Orderable Regions

Southwest; West