Casandra
Casandra Test Code QD08586Version 1 (DRAFT)
Performing Lab
Lab Quest DiagnosticsLab Test ID 31348
PSA Free and Total
Also known as: PSA, Free, Fractionated PSA, PSA II, Prostate Specific Antigen Free and Total
Clinical Use
Order TestUse
This test measures both free and total Prostate‑Specific Antigen (PSA) in blood, used to assess prostate health and improve specificity in prostate cancer screening by providing the percentage of free PSA, which helps differentiate benign prostatic hyperplasia (BPH) from malignant causes.
Special Instructions
Preferred specimen is serum; fasting is not required.
Limitations
Not provided.
Test Details
Methodology
Immunoassay (Multiplex Protein Panel)
Biomarkers
PSA, % Free
AnalytePSA, % Free • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
PSA, Free
AnalytePSA, Free • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
PSA, Total
AnalytePSA, Total • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Result Turnaround Time
Not provided.
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Serum
Volume
Not provided
Minimum Volume
Not provided