[SEVERE HYPERNATREMIA IN A TEENAGE GIRL SUFFERING FROM ANOREXIA NERVOSA].

Hypernatremic dehydration is an uncommon condition, whose main treatment is fluid administration. In cases of extreme hypernatremia, that treatment paradoxically poses a real danger to the patient's morbidity and mortality. In very rare cases, restrictive type anorexia nervosa causes extreme dehydration that can result in elevated sodium levels.