Protein C and Protein S Tests
Acesse agora, gratuitamente, o National Institutes of Health e consulte, com o suporte da inteligência artificial do ProtoMedi, informações técnicas detalhadas sobre este e outros medicamentos. Obtenha respostas rápidas e confiáveis sobre interações, indicações e precauções — no momento em que você mais precisa
Dados do National Institutes of Health
| Protein C and Protein S Tests : What are protein C and protein S tests? Protein C and protein S tests use a sample of your blood to measure how many of these proteins you have and how well they're working. Though they are often done together, these are separate tests. A protein C test measures protein C in your blood; a protein S test measures protein S. Normally, proteins C and S work together to prevent your blood from clotting too much. Tests of protein C and S use a sample of your blood to measure how much of these proteins you have and how well they're working. However, if you have a protein C or S deficiency (when your body doesn't make enough of these proteins), your blood may clot too much. It may also clot even when you don't have an injury. These deficiencies can cause: - Deep vein thrombosis (DVT), a condition where blood clots form in the veins in your legs or pelvis. - Pulmonary embolism, a life-threatening condition where blood clots break loose and travel to your lungs. Most protein C and protein S deficiencies are acquired. That means that the deficiency is caused by another health condition or certain medicines. Acquired protein C and S deficiencies may develop with: - Infections. - Liver or kidney disease. - A lack of vitamin K. - Cancer and chemotherapy. - Certain medicines, including birth control pills and warfarin, a blood-thinner. - Pregnancy. - Disseminated intravascular coagulopathy (DIC), a rare condition that causes blood clotting throughout the body, followed by bleeding. In rare cases, protein C or protein S deficiencies are inherited. That means that your condition is caused by a change in a gene that one or both of your parents passed down to you. There are separate tests for protein C and S. But they are often done at the same time. Other names: protein C antigen, protein S antigen, PC, PS, free PS, autoprothrombin IIA | |
| Review Date: 24/11/2025 | Updated By: |