I-Fibrinogen
II–Prothrombin
III-Thromboplastin
IV-Calcium
V-Proaccelerin,labile factor
VI-No factor
VII-Stable factor,proconvertin
VIII-Anti Hemophilic Factor A,PTC
IX-Anti Hemophilic Factor B,Christmas factor
X-Stuart prower factor
XI-Anti Hemophilic factor C,PTA
XII-Hageman Factor,Glass factor
XIII-Laki Lorand factor,Fibrin Stabilizing Factor
HMW Kininogen-Fitzgerald factor
Pre Kallikrein-Fletcher factor
Important points
- Vit K dependent factors- II,VII,IX,X
- Factors which are involved in the intrinsic and common pathways of coagulation will be absent in serum.
- Factor VII is present in both plasma and serum because it is involved in extrinsic system of coagulation.
- Intrinsic pathway involves Factors – XII,XI,IX,VIII.
- Common pathway involves-X, V,prothrombin(II),fibrinogen(I),XIII.
- Extrinsic pathway and intrinsic pathway meets at Factor X.
- PT is prolonged in disorders of Extrinsic system and common pathways- Factor VII deficiency
- PTT prolonged in disorders of Intrinsic and Common pathways- Von Willebrands factor deficiency,Factor VIII def
Disorders of coagulation
Dysfibrinogenemia- PT,PTT and TT prolonged
Von Willebrands disease- Isolated PTT prolongation with normal PT
Ureal clot lysis test- Factor XIII
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