Prostate Specific Antigen

Also known as: PSA

Specimen requirements

Sample type: Serum (Serum)

Collection requirements: No special requirements

Cost

Price on application

Turnaround time

Please see Turnaround times

Analytical method

Immunoassay - Direct / Sandwich

Analysis undertaken at these site(s)

• John Radcliffe Hospital
• Horton General Hospital

Reference intervals

Female

All ages: 0 - 4 µg/L

Male

Oxfordshire 2 Week Wait referral thresholds for elevated PSA:

• Age 40-49 = >2.5 mcg/L
• Age 50-59 = >3.5 mcg/L
• Age 60-69 = >4.5 mcg/L
• Age 70-79 = >6.5 mcg/L
• Age 80 or above = >10 mcg/L
  

The threshold is halved for those taking 5-alpha reductase inhibitors