We report on a 17-year-old female patient with severe anorexia nervosa (AN)
(body mass index of 9.8 kg/m(2)) who developed hypophosphataemia (serum ph
osphate 0.4 nmol/l) and subsequent haemolytic anaemia during oral refeeding
. Hypophosphataemia due to an increased phosphate uptake may lead to a redu
ction of erythrocyte adenosine triphosphate. This mechanism is important fo
r the differential diagnosis of haemolytic anaemia in patients with AN. To
prevent this complication, phosphate supplementation should be considered i
n the refeeding of severely malnourished patients. Copyright (C) 2001 S, Ka
rger AG, Basel.