This test allows a determination of iron in the urine (Desferal test). The indications are: -Acute iron poisoning *Any symptomatic patient with more than transient minor symptoms *Patients with signs of lethargy, severe abdominal pain, hypovolaemia, or acidosis *Patients with an x-ray showing multiple abdominal opacities *Any symptomatic patient with serum iron levels above 300-350 µg / dL regardless of the total iron binding capacity *Aluminum poisoning in chronic renal failure on dialysis *Hemochromatosis, hemosiderosis