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Protein S Antigen, Total and Free

Order Code: 1042

Test Information

This test provides the antigen level of the blood coagulation factor, Protein S. This protein is one of the regulatory proteins in the blood clotting cascade.

Sample Requirements

Citrated Plasma (light blue top)

Additional Sample Requirements

Patient should be off warfarin for at least 2 weeks before drawing sample.

Shipping Information


Requested Volume

2 aliquots of 1ml each

Minimum/Pediatric Volume

2 aliquots of 1ml each

CPT Codes

85305, 85306


Microlatex Particle - Mediated Immunoassay

Turnaround Time

7-10 days

New York State Approval



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