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Choose collection locationTumour Markers · Individual laboratory test
This profile reports total and free PSA together with their relationship. It can add detail to the assessment of a prostate-related finding.
Clinical authorDr Nirupama SabhapathySpecialist Clinical Pathology
Understanding the test
Also called Free & Total PSA Ratio
Combining total and free PSA can clarify whether additional prostate assessment is appropriate. Earlier values and recent procedures are useful context.
Total and free PSA from the same assessment allow the clinician to consider the free-to-total relationship.
Prostate symptoms, infection, recent procedures and prior values may change the next step.
Inside this test
Before your sample
No fasting is required. Avoid ejaculation and vigorous cycling or riding for about 48 hours before collection. Check the timing after urinary infection, prostate examination or procedures with your clinician.
A clinician takes a small sample of blood from a vein. The laboratory uses serum, the liquid separated from the blood after it clots.
Smart Report
2 to 3 daysLaboratory turnaround
A change in either fraction affects the ratio. The measurements contribute to a risk assessment that may also involve examination or imaging.
From sample to follow-up

Choose your location, add the test to your care bag and select a time. If you are booking for someone else, assign the test to them in checkout.
Choose collection locationLook for Prostate Specific Antigen (PSA), Profile in your report. Use the sample type and collection time when comparing it with an earlier report.
Explore Smart Report
Ask how the two PSA values, their ratio and any recent prostate symptoms affect the decision about follow-up.
Patient questions
It contributes to risk assessment. Neither the ratio nor total PSA confirms cancer; examination, imaging or other investigation may still be needed.
Yes. Finasteride, dutasteride and testosterone therapy all alter PSA measurements, so the figures have to be read differently when you take them. Tell the laboratory about these and any herbal prostate supplements, and do not stop a prescribed medicine to prepare for the test. Your doctor accounts for the treatment when interpreting the profile.
An enlarged prostate, prostate inflammation or a recent prostate biopsy can raise PSA. Ejaculation or vigorous cycling can also cause a temporary rise. Tell your clinician about recent infection, procedures and activity so they can decide whether to repeat the test and when.
KEEP EXPLORING
Open a package to see exactly which tests it includes.

A defined tumour-marker selection including PSA, with a blood count and stool occult blood, for clinician-directed assessment. Results cannot confirm or rule out cancer alone.

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A complete blood count with liver enzymes, cholesterol, kidney markers and fasting blood sugar from one blood sample.

A broad whole-body screen covering blood, urine and stool with kidney, liver, lipid, iron, diabetes and vitamin markers.
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Written by Dr Nirupama Sabhapathy, Specialist Clinical Pathology. Medically reviewed by Dr Joyce Jose, Specialist Clinical Pathology, on .
Catalogue information and AED price checked on 2 November 2026. Clinical suitability, preparation, collection arrangements and turnaround are confirmed for your selected test.