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  • Protein, Total

    Test Name:Prostatic Specific Antigen, Total (PSA)
    Epic Order Code:LAB116
    CPT Code:84153  
    Specimen(s) Type:Serum; 1.0 mL
    Acceptable Container(s):
    Testing Schedule:Monday - Friday
    Turn Around Time:STAT: NA
     Routine: 1 - 3 days
    Collection Information:No special patient preparation is required. Obtain specimen by standard collection procedures.
    Transport Information:Deliver to lab immediately. All specimens must be signed into the laboratory.
    Reference Clients:If unable to deliver to the lab within 1 hour, centrifuge the specimen and remove serum from the red cells. Store and transport at 2 - 8° C. Specimen must be received in the lab within 24 hours. If longer storage is required, store and transport the sample at -20° C for up to 30 days.
    Causes for Rejection:Improperly labeled, incorrect container, contaminated, insufficent quantity, incorrect/delay in transport, gross hemolysis.
    Reference Range:< 4.00 ng/mL
    Additional Information:Hormonal therapy may affect PSA expression; therefore, a low PSA level after any treatment that includes hormonal therapy may not adequately reflect the presence of residual or recurrent disease.
     Active free PSA in the serum at the time of blood sampling can continue to complex with serum protease inhibitors, especially alpha-2-macroglobulin, resulting in a rapid decrease in PSA levels of the active form of free PSA.