A 10 year old male is brought to ED with a 2 week history of a cough. He was prescribed antibiotics by the GP 5 days ago. Over the last 3 days the child has developed a petechial rash and had frequent nose bleeds. Below is the childs FBC:
Hb 82 g/L (112-145) WCC 3.4 x 10^9/L (4-12.5)
MCH 342 g/L (320-360) Neutrophils 0.4 x 10^9/L (1.3-7.3)
MCV 86 fl (76-90) Lymphocytes 2.9 X10^9 (1.5 -5.5)
Platelets 9 x 10^9/L (150-480)
- Describe and interpret the FBC result
- What clinical signs and investigations would help determine the cause of these findings?