01 Oct
This test is often useful in the comprehensive evaluation of Protein S when deficiency is suspected, allowing for assessment of the Free Protein S, separate from Total Protein S, which includes C4BP. The clinical use of this test is important in the evaluation of physiologically available Protein S in patients with lupus anticoagulant, and in the further classification of Protein S deficiency. Protein S is a highly thrombophilic protein.