Prostate-Specific Antigen Free: Total Ratio (PSA)
A complete PSA panel (total and free PSA plus the percent-free ratio) to add context to prostate screening. One draw, results usually in 1–2 business days.
PSA (prostate-specific antigen) is a protein made by the prostate. This panel measures both total PSA and the free fraction, then calculates the percent free, which helps distinguish benign prostate enlargement from findings that warrant closer attention, especially when total PSA is mildly elevated.
Included Tests
What This Panel Measures
Who Should Get This Panel
- You're a man over 45–50 considering routine prostate screening
- You have a family history of prostate cancer
- You've had a mildly elevated total PSA and want more context
- You're monitoring a known prostate condition
- You have urinary symptoms and want to check your prostate
Conditions Screened
Related Symptoms
When to Get Tested
No fasting is required. Avoid ejaculation, vigorous cycling, or prostate exams in the 48 hours before testing, as these can temporarily raise PSA. Screening frequency is a personal decision to make with your provider.
Understanding Your Results
Results post to your secure online account usually in 1–2 business days, with your total PSA, free PSA, and percent-free ratio. A higher percent free is generally reassuring, while a lower ratio with elevated total PSA may prompt further evaluation. Discuss results with a clinician, especially any that are elevated or changing.
Frequently Asked Questions
Do I need to fast?
How is this different from a total PSA test?
Is this billed to insurance?
Pairs Well With: Same Blood Draw
Test centers don’t accept payment. You pay securely here; the lab just does the draw.
What happens after you order?
- 1Your lab order form & test code appear in your secure online account, with your test center’s address.
- 2We send your lab requisition to the test center electronically.
- 3Walk in & get tested. Tests usually take 5 minutes or less.
