OUTPATIENT ANALYTIC ASSESSMENT OF ANOREXIA NERVOSA - THE IMPORTANCE OF VENOUS BLOOD GASES.

Objective: To evaluate serum biochemical parameters' evolution, especially venous blood gas (VBG), in anorexia nervosa (AN), correlating with clinical parameters.

Methods: Retrospective study including out-patient AN adolescents, between January 2014 and May 2017. Three evaluations were compared: t1) first consultation; t2) consultation with the lowest body mass index (BMI) z-score and t3) with the highest BMI z-score.