[Reevaluation of strategies for the diagnosis of iron deficiencies].

Serum ferritin has been assayed by two methods. Radio-Immunology and Enzymo-Immunology in two group of young females. Iron deficiency is considered as unequivocal if serum ferritin is lower than 20 micrograms/l whatever the method used analysis of red cell indices in iron deficient females has shown that anemia, hypochromia and microcytosis are very late events and that their sensitivity for the diagnosis if iron deficiency is very poor.