This test is used to aid in the evaluation of a number of conditions involved with red cell production and destruction, iron transport, or iron metabolism. This will assist your physician in differentiating between different types of anemia. May also be used to help diagnose hemochromatosis (iron overload). High levels of iron are associated with kidney/liver disease and a deficiency in vitamin B6. Low iron levels have symptoms including fatigue, headaches, or muscle pain.