Protein S deficiency; Protein C deficiency

If you have this condition, you are more likely to develop blood clots. The symptoms are the same as for deep venous thrombosis, and include:

• Pain or tenderness in the affected area
• Redness or swelling in the affected area

Laboratory tests will be done to check for proteins C and S. If you have this disorder, you will have a lack of protein C or S.

Other tests that may be done include:

• Bleeding time
• Partial thromboplastin time
• Prothrombin time
• Thrombin time

Images

Blood clot formation

Blood clots

Review Date: 03/28/2010
Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; James R. Mason, MD, Oncologist, Director, Blood and Marrow Transplantation Program and Stem Cell Processing Lab, Scripps Clinic, Torrey Pines, California. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

A.D.A.M., Inc. is accredited by URAC, also known as the American Accreditation HealthCare Commission (www.urac.org)