Quick highlights
- Provides free PSA, total PSA, and calculated ratio (%)
- Supports risk stratification when total PSA is elevated
- Does not diagnose cancer—clinical evaluation is required
- Ejaculation and cycling can transiently affect PSA—avoid before test
- Urinary infections/prostatitis can elevate PSA—disclose symptoms
- Most informative when compared with prior PSA trends
- Often used in urology decision-making for follow-up testing
- No fasting; simple blood draw
- Home blood collection available in many service areas
- SEO coverage: free PSA total PSA ratio, prostate PSA ratio test, PSA percent free test
What’s included
Preparation
- Book blood draw (home or lab)
- No fasting required
- Avoid ejaculation for 24–48 hours before sample if feasible
- Avoid vigorous cycling/strenuous exercise 24–48 hours prior
- Inform clinician about urinary symptoms (burning, fever) and recent antibiotics
- Avoid testing soon after catheterization or prostate procedures per clinician advice
- Collect serum blood sample via trained phlebotomist
- Download report from <a href='/my-account/'>View reports</a> and review with urologist
FAQs
A calculated percentage that compares free PSA to total PSA, used to support prostate evaluation in certain contexts.
No.
It helps risk stratification but does not diagnose cancer; clinician evaluation is required.
Benign enlargement, prostatitis, urinary infection, recent ejaculation, cycling, or procedures can increase PSA.
Yes, commonly 24–48 hours before, if feasible.
Vigorous cycling/exercise may influence PSA; avoiding it before testing can improve consistency.
Inform your clinician; PSA interpretation may change and testing may be deferred until infection is treated.
Often same day or within 24 hours.
Serum blood sample.
Yes in many serviceable areas.
Interpretation depends on total PSA, age, and clinical context; urologists decide significance.
Clinicians may repeat PSA for trend assessment before further steps.
Repeat PSA, imaging, or other urology evaluations depending on findings.
Download from <a href='/my-account/'>View reports</a>.
Notes
PSA ratios support risk assessment, not diagnosis.
