Serum Iron: circulating iron with a normal range of 65 to 175 mcg/dL in males and 50 to 170 mcg/dL in females
Ferritin: predominantly an intracellular iron storage molecule, serum ferritin directly correlates to total body iron stores – the normal range is 20 to 250 mcg/L in males and 10 to 120 mcg/L in females
Transferrin or total iron-binding capacity: a measure of transferrin molecules available to bind iron – TIBC is an indirect measurement
Transferrin saturation: a calculated measurement that reflects the amount of bound serum iron using the equation: serum iron divided by TIBC
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