Reliability of serum ferritin determinations after total dose infusion of iron dextran in pregnancy.

Serum ferritin, serum iron, total iron binding capacity, and haemoglobin levels were measured in a group of 36 pregnant women before, one week after, and four weeks after a total dose infusion of iron dextran (T.D.I.). The serum ferritin level is considered to provide a reliable index of maternal iron stores one month, but not one week, after TDI.