Which tests measure Percent Free PSA (calculated)?

Percent Free PSA (calculated) is measured in 1 test on BiomarkersLabs.com, including PSA, Free and Total (with Percent Free PSA) Panel.

Biomarker Reference · % Free PSA

What does the Percent Free PSA (calculated) test measure?

Q: Why is Percent Free PSA (calculated) measured?

Percent free PSA is the key derived value of the panel. A lower percentage is associated with a higher probability of prostate cancer, while a higher percentage favours benign prostatic hyperplasia, helping to inform whether a man with an intermediate total PSA should proceed to biopsy.

Q: What is the reference range for Percent Free PSA (calculated)?

The standard reference range for Percent Free PSA (calculated) is A higher percent free PSA favours benign disease; a low percentage (e.g. <10–25% depending on the cut-off used) is associated with higher cancer likelihood # REVIEWER FLAG: Percent-free-PSA cut-offs vary by source and assay — reviewer to confirm the threshold and framing adopted by BiomarkersLabs.com.. Reference ranges vary by laboratory and assay platform — interpret in context of the issuing laboratory's stated range.

Percent Free PSA (calculated) (% Free PSA) is a clinical biomarker used in cancer-biomarkers assessment. Percent free PSA is calculated as free PSA divided by total PSA, expressed as a percentage. It is measured in 1 laboratory test on BiomarkersLabs.com.

Reference Range: A higher percent free PSA favours benign disease; a low percentage (e.g. <10–25% depending on the cut-off used) is associated with higher cancer likelihood # REVIEWER FLAG: Percent-free-PSA cut-offs vary by source and assay — reviewer to confirm the threshold and framing adopted by BiomarkersLabs.com.
Units: %
Measured In: 1 test
Category: Cancer Markers

Functional medicine optimalA higher percent free PSA is more reassuring; interpreted against the chosen cut-off and clinical context

What is Percent Free PSA (calculated)?

Percent free PSA is calculated as free PSA divided by total PSA, expressed as a percentage. It integrates the two measurements into a single index that better discriminates benign from malignant causes of an elevated total PSA than total PSA alone. It is most informative when total PSA is in the intermediate range and the digital rectal examination is unremarkable.

Why is Percent Free PSA (calculated) measured?

Percent free PSA is the key derived value of the panel. A lower percentage is associated with a higher probability of prostate cancer, while a higher percentage favours benign prostatic hyperplasia, helping to inform whether a man with an intermediate total PSA should proceed to biopsy.

Reference ranges

Standard reference: A higher percent free PSA favours benign disease; a low percentage (e.g. <10–25% depending on the cut-off used) is associated with higher cancer likelihood # REVIEWER FLAG: Percent-free-PSA cut-offs vary by source and assay — reviewer to confirm the threshold and framing adopted by BiomarkersLabs.com.
Functional medicine optimal: A higher percent free PSA is more reassuring; interpreted against the chosen cut-off and clinical context
Units: %

Reference ranges vary by laboratory and assay platform. Interpret in context of the issuing laboratory's stated range.

Tests that measure Percent Free PSA (calculated)

1 test on BiomarkersLabs.com include this biomarker.

BML-CAN-002Comprehensive

PSA, Free and Total (with Percent Free PSA) Panel

Percent Free PSA (calculated) reference range in this test: A higher percent free PSA favours benign disease; a low percentage (e.g. <10–25% depending on the cut-off used) is associated with higher cancer likelihood # REVIEWER FLAG: Percent-free-PSA cut-offs vary by source and assay — reviewer to confirm the threshold and framing adopted by BiomarkersLabs.com.

Related clinical conditions

Related Biomarkers

Frequently measured alongside

Prostate-Specific Antigen, TotalPSA4 tests Prostate-Specific Antigen, FreeFree PSA2 tests

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