Haemophilia

The laboratory findings in haemophilia will be as follows.

APTT (activated partial prothrombin time) -prolonged

PT (prothrombin time)-normal

BT (bleeding time)-normal [1] or increased [2]

Factor VIII-C- low

Factor VIIIR:Ag [von Willebrand factor] and factor VIIIR:RCo [Ristocetin cofactor]-normal

Ref:

1. Crispian Scully, Roderick A. Cawson Medical problems in dentistry page 142 5th Ed. 
2. https://www.cdc.gov/ncbddd/hemophilia/diagnosis.html