'serum iron level' 26umol/l. 'saturation of iron binding cap '50%. %iron saturation 52%. 'serum ferritin level' 40ng /ml. What does it all mean.?

Normal iron status. The serum iron test measures iron in blood. Iron is bound to proteins in blood (mainly transferrin), so the % sat is proportion of iron binding proteins that carry iron. Ferritin is the amount of iron in reserve stores. In iron deficiency, iron and ferritin are low, transferrin is high, and % sat is low.