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Laboratory Values for Different Bleeding Disorders

Abbreviations:

aPTT – activated partial thromboplastin time
BT – bleeding time
INR – international normalized ratio
PT – prothrombon time
Plt – platelet count

PltBTaPTTPT/INR
Thrombocytopenia ↓↑↔↔
Platelet dysfunction↔↑↔↔
von Willebrand’s disease↔↑↑↔
FXII, HMWK, prekallekrein deficiency↔↔↑↔
FII, FV, FX deficiency↔↔↑↑
Hemophilia A↔↔↑↔
Hemophilia B↔↔↑↔
Vitamin K deficiency↔↔↔↑

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