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Prostate specific antigen (PSA)

About This Test

Department: Biochemistry


  • Gel/clotted (yellow/red top)

Add-on requests are accepted up to 48 hours post sampling


Turnaround Time:

Within 24 hours


Tumour marker used for diagnosis, risk assessment and monitoring of prostate carcinoma

PSA may be elevated in urinary tract infection, benign prostatic hyperplasia and prostatitis.  Elevation in PSA may be caused by catheterisation/digital rectal examination - take samples prior to invasive procedures

Reference ranges:

Age ranges Reference range (ng/mL)
Males < 50 years  2.5
  50-59 years  3.5
  60-69 years  4.5
   70 years  6.5

Results outside the reference range do not necessarily indicate disease. Similarly, results within the reference range do not preclude abnormality. Please contact the Duty Biochemist for discussion of individual patient results.


Other Comments:

For more information, please see the following: PSA - Lab Tests Online

Content approved in Clinical Biochemists meeting 05.09.18