PSA
A blood test used in prostate screening.
PSA is a protein made by prostate cells. The classic cutoff is 4.0 ng/mL; interpretation depends on age, prostate volume and medicines.
| Age | Age-based upper limit (ng/mL) |
|---|---|
| 40–49 | 2.5 |
| 50–59 | 3.5 |
| 60–69 | 4.5 |
| 70–79 | 6.5 |
- EAU Guidelines on Prostate Cancer
- Oesterling JE et al., JAMA 1993 — age-specific PSA ranges
- American Cancer Society — Screening tests for prostate cancer
General information only; not diagnosis or treatment. Review your results with your clinician.
