25 Jul
This test is often useful in the comprehensive evaluation of protein S when deficiency is suspected, allowing forassessment 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.