Diagnostic test
FREE PROTEIN S
About test
What does FREE PROTEIN S measure?
The Free Protein S test measures the active, unbound form of protein S in the blood. Protein S is a natural protein that helps regulate blood clotting. This test may be used to evaluate possible inherited or acquired protein S deficiency, particularly when there is a history of unusual or recurrent blood clots. Results are interpreted alongside clinical history and other clotting-related tests.
This overview is educational. Use the recorded preparation, sample and lab-partner details below for collection guidance, and confirm any missing information before collection.
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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.