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CA 125

Lab Section:  Chemistry  
Lab Location:  Main Lab
Test ID: LAB155 
Methodology: Chemiluminescent Immunoassay
Schedule: Monday-Friday cut off 2 PM
Reported: 1 Hour for stats 4 hours for routines.
Specimen Requirements:  Collection: 1.0 mL Primary Gold Top Tube; Dark Green Top accepted.
Pediatric volume: 0.5 mL.
Unacceptable conditions: Gross hemolysis
Stability: After separation from cells and refrigerated, 7 days


Clinical Indications: The CA 125 assay is used as an aid in monitoring response to therapy for patients with epithelial ovarian cancer. Serial testing for patient CA 125 values should be used in conjunction with other clinical methods for monitoring ovarian cancer. Patients with confirmed ovarian carcinoma may have pretreatment CA 125 assay values in the same range as healthy individuals. Elevations may be observed in patients with nonmalignant disease. For these reasons, a CA 125 assay value, regardless of level, should not be interpreted as absolute evidence of the presence or absence of malignant disease.

Reference Interval:  18 Years old and up < 35.0 U/mL
CPT Code(s): 86304
Last Changed: 10/19/2016 12:48:16
Last Reviewed: 10/20/2016 15:33:34