CANCER ANTIGEN 27.29 Mnemonic CA2729 Synonym Cancer Antigen-Breast - CA 27.29 - CA 27.29Ag - CA 27 - BR Specimen Collection Requirements Collect Serum, one 5.0 mL gold (SST) or 7.0 mL red top tube Supply Item Number - 101235 or 101192 Handling Allow serum tubes to clot completely at room temperature (minimum - SST: 30 minutes, red top tubes: 60 minutes). Centrifuge and separate serum from cells ASAP. Preferred Volume 1.0 mL Serum Minimum Volume 0.3 mL Serum (0.8 mL minimum whole blood draw) Transport Refrigerated (2-8°C). If the specimen will be delayed more than 24 hours, send frozen (≤ -20°C). Rejection Criteria Grossly hemolyzed or plasma specimens Specimens that have been thawed more than once Stability AFTER SEPARATION FROM CELLS: Room Temperature (18-26°C): 8 hours; Refrigerated (2-8°C): 48 hours; Frozen (≤ -20°C): 2 months. Do not thaw specimens more than once. Testing Information Performed Mon, Wed, Fri Reported 24-72 hours Method Chemiluminescent Immunoassay Reference Values Reference Values All: 0-38.6 U/mL CPT Codes 86300 Last Updated: Thursday, January 5, 2017 03:42:01 AM