Chapter 076. Eating Disorders (Part 2)

Table 76-1 Common Characteristics of Anorexia Nervosa and Bulimia NervosaAnorexia NervosaaBulimia NervosaClinical CharacteristicsOnsetMid-adolescenceLate adolescence/early adulthoodFemale:male10:110:1Lifetime prevalence1%1–3%in womenWeightMarkedly decreasedUsually normalMenstruationAbsentUsually normalBinge eating25–50%Required diagnosisforMortality5% per decadeLowPhysical and Laboratory FindingsaSkin/extremitiesLanugoAcrocyanosisEdemaCardiovascularBradycardiaHypotensionGastrointestinalSalivary enlargementglandSalivary enlargementglandSlow emptyinggastricDental erosionConstipationElevated enzymesliverHematopoieticNormochromic, normocyctic anemiaLeukopeniaFluid/ElectrolyteIncreased creatinineBUN,HypokalemiaHypochloremia Hypokalemia AlkalosisEndocrineHypoglycemiaLow testosteroneestrogenorLow LH and FSH ...
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Chapter 076. Eating Disorders (Part 2) Chapter 076. Eating Disorders (Part 2) Table 76-1 Common Characteristics of Anorexia Nervosa and BulimiaNervosa Anorexia Nervosaa Bulimia Nervosa Clinical Characteristics Onset Mid-adolescence Late adolescence/early adulthood Female:male 10:1 10:1 Lifetime prevalence 1% 1–3%in women Weight Markedly decreased Usually normal Menstruation Absent Usually normal Binge eating 25–50% Required for diagnosis Mortality 5% per decade Low Physical and Laboratory Findingsa Skin/extremities Lanugo Acrocyanosis Edema Cardiovascular Bradycardia HypotensionGastrointestinal Salivary gland Salivary gland enlargement enlargement Slow gastric Dental erosion emptying Constipation Elevated liver enzymesHematopoietic Normochromic, normocyctic anemia LeukopeniaFluid/Electrolyte Increased BUN, Hypokalemia creatinine Hypochloremia Hypokalemia AlkalosisEndocrine Hypoglycemia Low estrogen or testosterone Low LH and FSH Low-normal thyroxine Normal TSH Increased cortisol Bone Osteopenia a Patients with the binge-eating/purging subtype of anorexia nervosa mayalso exhibit the physical and laboratory findings associated with bulimia nervosa. Abbreviations: BUN, blood urea nitrogen; LH, luteinizing hormone; FSH,follicle stimulating hormone; TSH, thyroid stimulating hormone.