| TUMOR MARKERS | ||
| Other Test Name | : | PSA Total Prostate Specific Antigen |
| Specimen Requirements | : | Specimen: Serum Volume: 1mL – 3 mL Container: Red or Gold tube |
| Storage Instructions | : | Refrigerated: 5 Days |
| Causes for Rejection | : | – Hemolyzed specimen – Lipemic specimen – Improperly labeled specimen |
| Use | : | Help men 50 years of age or older discover prostate cancer. |
| Methodology | : | Electrochemiluminescence Immunoassay (ECLIA) |
| Limitation | : | PSA levels may be significantly decreased in patients with prostate cancer who are treated with antiandrogens and luteinizing hormone-releasing factor agonists. Very high titers of antibodies to streptavidin or ruthenium may occasionally cause interference. |
