Figure 3.
Source of samples with an immunoglobulin (Ig)G < 6 g/l. A wide range of specialities is represented with a high number from surgery due probably to the use of intravenous fluids and blood products which may temporarily alter a calculated globulin (CG) [intensive care unit (ITU), general practice (GP), outpatients department (OPD), Teenage Cancer Trust unit (TCTU), accident and emergency (A&E), medical assessment unit (MAU].