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Med-Spot on Med-Source: Coagulopathies

Med-Spot 6.21.07 - Coagulopathies

The values of the PT & PTT provide a fair amount of information when trying to narrow down the etiology of a bleeding disorder. The following information is incredibly testable (boards, shelf, etc) and useful on the wards


PT

PTT

Inherited Coagulopathies

Acquired Coagulopathies

↑

nl.

factor VII deficiency

warfarin
vit. K deficiency
liver dz.
inhibitor of factor VII

nl

↑

hemophilias
vWD

heparin
factor inhibitors
antiphospholipid Ab

↑

↑

prothrombin deficiency
fibrinogen deficiency
factor V or X deficiency
combined factor deficiency

heparin + warfarin
DIC
liver dz
inhibitor of prothrombin

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