?:definition
|
-
Immunoassay reagents intended to perform qualitative and/or quantitative analyses of a sample of body fluids (e.g., serum) to determine the prostate-specific-antigen (PSA) enzyme, either total or free (fPSA); these reagents include antibodies (typically monoclonal antibodies) with the capability of binding to this tumor marker. PSA level is used to monitor treatment of prostate carcinoma because it correlates with the stages of tumor extension and metastasis; the level of total and/or free PSA and the proportion of free to total PSA are also used in diagnosis of prostate carcinoma and its differentiation from benign prostatic hyperplasia.
|