TF and chronic kidney disease: Notably, prior to FCM dosing, mean haemoglobin (94.6 g/L), transferrin saturation (13.6%) and reticulocyte haemoglobin levels (25.2 pg) were suboptimal but a single dose of FCM brought these parameters within the target range for children with CKD receiving iron therapy, as defined by the National Institute of Clinical Excellence (Table 1).