At a Glance
Why Get Tested?
To diagnose an illness affecting your immune system, such as an infection, inflammatory illness, immune deficiency, or tumour such as leukaemia or lymphoma
When to Get Tested?
As part of a full blood count (FBC), which may be requested for a variety of reasons
A blood sample taken from a vein in your arm or by a finger-prick (children and adults) or heel-prick (infants)
Test Preparation Needed?