Protein S, free
| Material: | 1 ml citrate plasma (frozen) |
| Methods: | Koagulometrie → Koagulometrie | Reference range | 74-120 % |
| Indication | Thrombophilia, suspicion for hereditary thrombophilia, neonatal purpura fulminans |
| Please note | As protein S is vitamin K-dependent, its activity cannot be assessed during therapy with vitamin K-antagonists. The treatment should be stopped two weeks before analysis, if medically acceptable. Apart from hereditary deficiency, liver synthesis defects, fresh thrombosis, disseminated intravasal coagulation (DIC), nephrotic syndrome and eleveted estrogen levels (contraception, pregnancy) might cause lowered protein S-activities. Especially in children, autoantibody formation after acute infections might occur. |
| External services | ja Labor Zentrum Weser Prof. Dr. med. Schmitz Minden |
| Accredited | ja |
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