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Cancer Antigen 125

Alias:

CA125 (Cancer Antigen 125), Cancer Antigen 125, Carbohydrate Antigen 125, OV Monitor, Ovarian Cancer-Related Antibodies, Cancer Ag 125 (CA 125), Serum

Methodology:

Electrochemiluminescence

Performed:

Sun-Sat

Analytical Time:

Same day

Testing Laboratory:

Pathology Laboratory

Laboratory Section:

Core Laboratory

Interpretive Data:

The testing method is an electrochemiluminescence assay manufactured by Roche Diagnostics Inc. and performed on the Cobas system. Values obtained with different assay methods or kits may be different and cannot be used interchangeably.

Cancer Antigen 125

Preferred Collection Container:

Light Green (Lithium Heparin Plasma Separator Tube)
SST (Serum Separator)

Also Acceptable Collection Container:

Green No Gel (Lithium Heparin)
Red (No Additive)
Plasma from Lavender tubes is acceptable but will not route in the Laboratory Information System (Sunquest).

Collection Information:

Collect blood in a Light Green (Lithium Heparin Plasma Separator Tube) or SST (Serum Separator). Green No Gel (Lithium Heparin), Red (No Additive) and Lavender (EDTA) also acceptable.

Transport Information:

Centrifuge and aliquot 1.0 mL of serum or plasma into a plastic transport vial. Send frozen.

Minimum Sample Volume: Minimum amount of analytical sample (serum, plasma, urine, CSF, etc.) required to perform an assay once. Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory or reflex testing. In some situations, a minimum specimen volume may result in a QNS (Quantity Not Sufficient) result, requiring a second specimen to be collected.

Minimum amount of analytical sample (serum, plasma, urine, CSF, etc.) required to perform an assay once. Submitting the minimum volume makes it impossible to repeat the test or perform confirmatory or reflex testing. In some situations, a minimum specimen volume may result in a QNS (Quantity Not Sufficient) result, requiring a second specimen to be collected.

0.5 mL of serum or plasma (approximately 1.0 mL of whole blood based upon a normal patient hematocrit)

Remarks:

Separate serum from cells ASAP. Avoid repeated freeze/thaw cycles. CA 125 II assay testing is not recommended as a screening procedure to diagnose cancer in the general population.

Stability

Refrigerated Stability:

7 days - Preferred

Frozen Stability:

6 months

Cancer Antigen 125

Sunquest Order Code:

CA125

Epic Number: The test code used to identify this assay in Epic

LAB155

CPT Code:

86304

Cancer Antigen 125

Modified:

7/19/2016 9:33:23 AM