Blood Clotting Tests Flashcards
1
Q
Primary hemostasis
Doesn’t require clot formation
Normal in hemophilia
Prolonged in vWD or platelet disease
A
Bleeding time (BT)
2
Q
Extrinsic & common pathway
A
Prothrombin time (PT)
3
Q
Fibrinogen concentration and polymerization
Prolonged by heparin
A
Thrombin time (TT)
4
Q
Intrinsic & common pathway
A
Activated Partial Thromboplastin Time (aPTT)
5
Q
Directly affects X
Tests common pathway
A
Russell’s viper venom time
