For Adult reference ranges click here
Haemosiderin either appears as blue staining of isolated or grouped granules. Results are reported as POSITIVE or NEGATIVE
Prothrombin Time ratio (PT) 0.8-1.2 (10-14.0 seconds)
INR Dependent upon therapeutic requirement
APTT Ratio 0.8-1.2 (23-34 seconds)
Paediatric reference ranges can be found here
1.5 - 4.1 g/L
Up to Age 49: <250 ng/mL
For patients aged 50 years and above: use age adjusted cut-off value of 5x age in conjunction with Wells score for exclusion of PE or DVT