<prompt> All are true about bulimia nervosa except:AmenorrhoeaBinge eatingPurgation and vomitingNormal body contour  <response>: Ans: a Amenorrhoea Ref: Ahuja, 6th ed, p. Kaplan Sadock, 8th ed, p. 2012,Amenorrhoea is not a feature of bulimia nervosa; it is seen in anorexia nervosaFluoxetine is an anti-depressant that has been approved for use in bulimia nervosa.Common characteristics of anorexia nervosa and bulimia nervosaClinical characteristicaAnorexia nervosabulimina nervosaOnsetMid-adolescenceLate adolescenceeariy adulthoodFemale: male10:110:1Lifetime prevalence in women11-3WeightMarkedly descreasedUsually normalMenstruationAbsentUsually normalBinge eating25-50Required for diagnosisMorality5 per decadeLowPhysical and laboratory findingsSkinextremitiesLanugo Acrocyanosis Oedema CardiovascularBradycardia Hypotension GastrointestinalSalivaly gland enlargementSalivary gland enlargement Show gastric emptyingDental erosion Constipation Elevated liver enzymes HaematopoieticNormochromic, normocycytic anaemia Leukopenia FluidElectrolyteIncreased BUN. creatinineHypokalaemia HypokalaemiaHypochloraemia AlkalosisEndocrineHypoglycaemia Low esterogen or testosterone Low LH and FSH Low-normal thyroxine Normal TSH Increased cortisol BoneOsteopenia 