02-06-2011, 05:50 PM
A 12-year-old boy is noted to bleed excessively during an elective dental extraction. Following the procedure, examination reveals petechial skin hemorrhages.
Blood results show:
Hb 12.3 g/dl
Plt 255 * 109/l
WBC 7.9 * 109/l
PT 13.3 secs
APTT 39 secs
Factor VIII activity 87%
What is the most likely diagnosis?
A. Disseminated intravascular coagulation
B. Idiopathic thrombocytopenic purpura
C. Von Willebrand's disease
D. Haemophilia A
E. Haemophilia B
Blood results show:
Hb 12.3 g/dl
Plt 255 * 109/l
WBC 7.9 * 109/l
PT 13.3 secs
APTT 39 secs
Factor VIII activity 87%
What is the most likely diagnosis?
A. Disseminated intravascular coagulation
B. Idiopathic thrombocytopenic purpura
C. Von Willebrand's disease
D. Haemophilia A
E. Haemophilia B