Diagnostic test
FREE PSA
About test
What does FREE PSA measure?
The Free PSA test measures the amount of unbound prostate-specific antigen (PSA) in the blood. It is often considered along with total PSA to calculate the percentage of free PSA. This information may help healthcare professionals assess prostate-related concerns and decide whether further evaluation is appropriate, particularly when total PSA levels are elevated or borderline. Interpretation depends on total PSA results, age, medical history, and clinical findings.
This overview is educational. Use the recorded preparation, sample and lab-partner details below for collection guidance, and confirm any missing information before collection.
Choose a laboratory
Compare eligible lab partners
Prices, report times and availability are shown from the catalog records for each eligible partner.
Thyrocare
- Sample for analysis
- Confirm with the collection team
- Report time
- To be confirmed
Preparation and specimen requirements can vary by test and laboratory. Follow the instructions shown for your selected partner and any advice from your healthcare professional.