A 9 year old boy with elevation in both PT and A PTT. What is the diagnosis? -
APTT is used to measure the intrinsic system factors as well as factors common to both intrinsic and extrinsic system. PT measures extrinsic system factor as well as factors in common pathway. As both are affected defect is in common pathway. Reference : Harsh Mohan textbook of pathology, 7th edition.Pg no.307,308
Defect in extrinsic pathway
Defect in intrinsic pathway
Platelet function defect
Defect in common pathway
Haematology