4Kscore Using Serum Stored Uncentrifuged
4Kscore Using Serum Stored Uncentrifuged
The purpose of the study is to evaluate whether storage of serum uncentrifuged is an
 allowable preanalytical procedure
Inclusion Criteria:

 -  Men capable of donating five 5 mL tubes of whole blood

 -  40 to 80 years old

 -  No prior diagnosis of prostate cancer; prior negative prostate biopsy included

 -  Total PSA (tPSA) value measured within last year to be: at 1.5 ng/mL to 4 ng/mL, 4.1
 ng/mL to 10 ng/mL and 10 ng/mL and above

 Exclusion Criteria:

 -  In the previous 96 hours (4 days), underwent a digital rectal exam

 -  Any invasive urologic procedure in the 6 months prior to study participation

 -  Underwent any procedure to treat symptomatic benign prostatic hyperplasia in the last
 6 months

 -  Radical prostatectomy since tPSA measurement

 -  Received within the previous 6 months 5-alpha reductase inhibitor (5-ARI) therapy such
 as Avodart (dutasteride) or Proscar (finasteride)