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Blood Iron Test
Blood Iron Test
Iron is an inorganic ion ,which is the most abundant of all essential elements. Approximately 2.5 gm of iron is in hemoglobin ,2,5 gm of iron in plasma .Iron participates in many biochemical processes including cellular oxidation mechanism & oxygen transport.Iron status may be evaluated by ordering one or more tests to determine the amount of iron in the blood, the capacity of the blood to transport iron, and the amount of iron in storage. They may also help differentiate various causes of anemia. Testing may include:
Serum iron – measures the level of iron in the blood.
TIBC (total iron-binding capacity) – measures all of the proteins in the blood that are available to bind with iron, including transferrin. Since transferrin is the primary iron-binding protein, the TIBC test is a good indirect measurement of transferrin. The body produces transferrin in relationship to the need for iron. When iron stores are low, transferrin levels increase and vice versa. In healthy people, about one-third of the binding sites on transferrin are used to transport iron.
UIBC (unsaturated iron-binding capacity)– measures the reserve capacity of transferrin, the portion of transferrin that has not yet been saturated. UIBC also reflects transferrin levels.
Transferrin saturation. This is a calculation that is done with the iron test result and TIBC or UIBC. It represents the percentage of the transferrin that is saturated with iron.
Serum ferritin- reflects the amount of stored iron in your body; ferritin is the main storage protein for iron inside of cells.
These tests are often ordered together, and the results of each can help the doctor to determine the cause of iron deficiency and/or overload.
Specimen :
Serum\plasma, whole blood &urine.
Normal Range :
Male : 65.0 – 175.0ug/dl.
Female : 50.0 – 170.0ug/dl.
Blood Iron Test
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