This formula is not exact: It assumes the current density is totally uniform in the conductor, which is not always true in practical situations. However, this formula still provides a good approximation for long thin conductors such as wires.
Deferasirox is used in the treatment of transfusional iron overload in people with thalassemia. Chelation therapy is used as a treatment for metal poisoning, including acute mercury, iron (including in cases of thalassemia), arsenic, lead, uranium, plutonium and other forms of toxic metal poisoning.
EDTA binds to calcium deposits in the arteries and is used in cases of atherosclerosis, where it has a more than 80% success rate. It can also remove lead (but not mercury) from the body.hese substances bind to metals like lead, cadmium and arsenic, as well as other toxic substances, and help remove them from the body. Chelation therapy is extensively documented in the medical literature, and is recognised as a legitimate treatment for lead poisoning.