92145:HER-2/neu, SERUM

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92145:HER-2/neu, SERUM
Alias Names: Human Epidermal growth factor Receptor 2 / ErbB-2 / c-erbB-2 / EGF receptor 2 / breast cancer / HER2 / HER / HER 2 / HER2
Methodology: Enzyme-Linked Immunosorbent Assay (ELISA)
Edit Date: 6/1/2009
Performed: Thursday
Released: 1-8 days after setup at PeaceHealth Laboratories’ reference lab.
CPT Code: 83950-90
Specimen Collection Details
Collection: One 7.5 mL serum separtor tube (SST).
Handling: Allow to clot, centrifuge and separate serum from cells and pour into a plastic vial. Freeze.
Stability: 4 days ambient, 3 weeks refrigerated, or 1 year frozen.
Standard Volume: 1 mL serum.
Minimum Volume: 300 µL serum.
Transport: Frozen.
Comments: This assay is performed using the Siemens Medical Solutions Diagnostics HER-2/neu Microtiter ELISA. Results obtained with different assay methods or kits cannot be used interchangeably.

Serum HER-2/neu levels may not always indicate the presence or absence of malignant disease. The HER-2/neu value should be used as part of an overall clinical assessment that includes additional clinical evaluation and diagnostic tests. In metastatic breast cancer cases, 92% of patients having serum HER-2/neu of 37 µg/L or greater are tissue HER-2 positive, whereas only 27% of patients having values less than 37 µg/L are tissue HER-2 positive.

PeaceHealth Laboratories