title: The effect of prostatitis, urinary retention, ejaculation, and ambulation on the serum prostate-specific antigen concentration.
abstract: PSA remains an immensely valuable tool in the diagnosis of prostate adenocarcinoma. Factors such as prostatitis, urinary retention, ejaculation, and inpatient versus outpatient measurement, however, may have a profound effect on the serum PSA concentration. Furthermore, prostate biopsy and TURP result in an increase in the serum PSA value that resolves in 4 to 6 weeks. It is imperative that these factors be taken into account to interpret serum PSA values, to optimize the diagnostic utility of the PSA test.
authors.affiliation: Michigan Prostate Institute, Ann Arbor, USA.
authors.forename: M B
authors.initials: MB
authors.lastname: Tchetgen
authors.forename: J E
authors.initials: JE
authors.lastname: Oesterling
mesh_terms: D000368:Aged; D000900:Anti-Bacterial Agents / Q000494:pharmacology; D004542:Ejaculation; D006801:Humans; D008297:Male; D017430:Prostate-Specific Antigen / Q000097:blood*; D011471:Prostatic Neoplasms / Q000097:blood / Q000175:diagnosis; D011472:Prostatitis / Q000097:blood*; D016055:Urinary Retention / Q000097:blood*; D016138:Walking
chemical_list: D000900:Anti-Bacterial Agents; D017430:Prostate-Specific Antigen