Cancer Antigen 125

Last Modified: 8/31/2023 3:12:15 PM

  Medicare Medical Necessity Restrictions May Apply
Medical Necessity Documentation:

Client Notes:  
Patient Preparation: Patient should discontinue taking Biotin, Vitamin B7, or Vitamin H 48 hours before getting blood drawn.
Specimen Requirements: 2.0 mL Serum in a SST Gold Top Tube
Collection Instructions:  
Minimum Volume: 0.5 mL
Transport & Storage: Temperature/Stability: 24 hours Refrigerated
Reference Range: < 35 Units/mL
Critical Ranges:  
Test Comments: Elevations of CA 125 assay values have been reported in many non-ovarian malignancies and in individuals with nonmalignant conditions such as cirrhosis, hepatitis, endometriosis, first trimester pregnancy, ovarian cysts, pelvic inflammatory disease, and during menstruation.The CA 125 assay is not recommended as a screening procedure to detect cancer in the general population; however, use of the CA 125 assay as an aid in the management of ovarian cancer patients has been reported.
Patients taking vitamin supplements containing doses of >5 mg/day may have falsely decreased test results generated.
Methodology: Chemiluminescence ECLIA
Clinical Significance:  
Custom Panel: No


Days Performed: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Sites Performed: Parkview Regional Medical Center
PHL Test Code: C1251
EPIC Test Code: LAB155
Alternate Test Names: CA 125
Included Tests:  
CPT Coding: 86304

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