Daily variability of serum prostate-specific antigen in men over 50 years of age.
In order to investigate the variability of serum prostate-specific antigen (PSA) levels a total of 44 men 50 years or older with normal digital rectal examination were enrolled. Blood samples were obtained three times within a day, and, immediately before and 72 hours after hospitalisation. Alterations in serum PSA value during the day and after hospitalisation, which might affect clinical decision, occurred in 15% of the cases with borderline PSA values. The results indicate that there may be significant changes in serum PSA levels within a day and after hospitalisation.
Tekin
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A
Department of Urology, Hacettepe University, Faculty of Medicine, Ankara, Turkey. aaftekin@tr.net
Atsu
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N
Ozen
H
H
D000368:Aged; D000369:Aged, 80 and over; D002940:Circadian Rhythm / Q000502:physiology; D006760:Hospitalization; D006801:Humans; D008297:Male; D008875:Middle Aged; D017430:Prostate-Specific Antigen / Q000097:blood*; D012016:Reference Values
D017430:Prostate-Specific Antigen