IGF-1 (Insulin-like growth factor 1)
IgG, CSF see CSF oligoclonal bands
Immunofixation see serum protein electrophoresis
Immunoreactive trypsin (IRT)
Inborn errors of metabolism, urine/plasma - for paediatric investigations see paediatric investigation profiles.
Infectious mononucleosis - gandular fever screen
INR see coagulation screen
Insulin-like growth factor 1 (IGF1) see IGF-1
Insulin C-peptide see C-peptide (serum)
Insulin stress test see dynamic function tests
Iron (urine) test no longer available
Iron studies (iron, transferrin, transferrin index)
IRT see immunoreactive trypsinogen
Ischaemic forearm lactate & ammonia test see dynamic function tests
Islet antigen-2 antibody see IA-2 antibody
Islet cell antibody no longer offered due to poor performance. Please request GAD antibody instead.