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Prostate-Specific Antigen

PSA Total PSA
Serum (SST; avoid prostatic massage 24h before) µg/L (ng/mL)

About this test

Serine protease produced by prostatic epithelium. Used in prostate cancer screening and monitoring. Not cancer-specific; elevated by BPH, prostatitis, and recent catheterisation.

Reference Ranges

Sex Age Range Notes
Male 40–49 yrs < 2.5 Age-specific ULN: 40–49
Male 50–59 yrs < 3.5 50–59
Male 60–69 yrs < 4.5 60–69
Male ≥ 70 yrs < 6.5 ≥70

Clinical Interpretation

High / Increased
Prostate cancer, BPH, prostatitis, acute urinary retention, post-prostatic biopsy.
Specimen
Serum (SST; avoid prostatic massage 24h before)
Reporting Unit
µg/L (ng/mL)
Category
🧪 Clinical Biochemistry

⚠ Clinical Note
Reference ranges are indicative. Always interpret results in the context of the individual patient and local laboratory reference intervals, which may vary.