Protein S Antigen, Total details
What Protein S Antigen, Total shows
Total Protein S measures the overall amount of Protein S in your blood — both the free, biologically active form and the form bound to a carrier protein — as opposed to the free Protein S test, which measures only the active, unbound portion. Protein S is a natural anticoagulant that works with Protein C to help regulate blood clot formation, and low total Protein S, like low free Protein S, raises the risk of developing abnormal blood clots. It's typically tested as part of a broader clotting disorder workup after an unexplained blood clot.
Tests that include Protein S Antigen, Total
This profile helps to confirm and characterize congenital deficiency of protein S.
- Protein S Antigen, Free The unbound, biologically active portion of Protein S, a natural anticoagulant. Low levels raise the risk of blood clots.
- Protein S Antigen, Total Measures the total amount of Protein S — both free and bound forms — a natural anticoagulant. Low levels raise the risk of blood clots.
This profile helps to confirm and characterize congenital deficiency of protein S.
- Protein S Antigen, Free The unbound, biologically active portion of Protein S, a natural anticoagulant. Low levels raise the risk of blood clots.
- Protein S Antigen, Total Measures the total amount of Protein S — both free and bound forms — a natural anticoagulant. Low levels raise the risk of blood clots.
This profile helps to confirm and characterize congenital deficiency of protein S.
- Protein S Activity Measures the activity of Protein S, a natural anticoagulant that works with Protein C. Low activity raises the risk of blood clots.
- Protein S Antigen, Free The unbound, biologically active portion of Protein S, a natural anticoagulant. Low levels raise the risk of blood clots.
- Protein S Antigen, Total Measures the total amount of Protein S — both free and bound forms — a natural anticoagulant. Low levels raise the risk of blood clots.
This profile helps to confirm and characterize congenital deficiency of protein S.
- Protein S Activity Measures the activity of Protein S, a natural anticoagulant that works with Protein C. Low activity raises the risk of blood clots.
- Protein S Antigen, Free The unbound, biologically active portion of Protein S, a natural anticoagulant. Low levels raise the risk of blood clots.
- Protein S Antigen, Total Measures the total amount of Protein S — both free and bound forms — a natural anticoagulant. Low levels raise the risk of blood clots.
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