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Eating Disorders and Autism

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Eating Disorders

Anorexia Nervosa

Things you should know

  • Key features
    • Refusal to maintain a healthy body weight
    • Intense fear of gaining weight
    • A Distorted body self-perception
    • Females make up 90% of cases
    • Ego syntonic
  • Risks associated with Anorexia Nervosa
    • Iron-deficiency anemia
    • Compromised immune system
    • Abdominal pain, constipation, diarrhea
    • Loss or disturbance of menstruation
    • Increased risk of infertility in men and women
    • Kidney failure
    • Osteoporosis
    • Bradycardia and other arrhythmias
    • Death

I came in to see my physician assistant today because of…

  • Anorexia is ego syntonic
  • Physical Signs
    • Rapid weight loss or frequent weight changes
    • Disturbance of menstruation in girls and women
    • Decreased libido in men
    • Dizziness, fainting
    • Feeling cold most of the time
    • Constipated
    • Feeling tired
    • Difficulty sleeping
  • Psychological Signs
    • Intense fear of gaining weight
    • Preoccupation with eating, food, body shape and weight
    • Feeling anxious and irritable around meal times
    • Unable to maintain a normal body weight for their age and height
    • Depression and anxiety
    • Reduced capacity for thinking and increased difficulty concentrating
    • Rigid thoughts about food being ‘good’ or ‘bad’
    • Distorted self-perception
    • Low self esteem and perfectionism
    • Increased sensitivity to comments relating to food, weight, body shape, exercise
    • Extreme body image dissatisfaction
  • Behavioral Signs
    • Deliberate misuse of laxatives, appetite suppressants, enemas and diuretics
    • Repetitive or obsessive behaviours relating to body shape and weight
    • Binge eating
    • Eating in private and avoiding meals with other people
    • Anti-social behaviour
    • Secrecy around eating
    • Compulsive or excessive exercising
    • Radical changes in food preferences
    • Obsessive rituals around food preparation and eating
    • Preoccupation with preparing food for others, recipes and nutrition
    • Self harm, substance abuse or suicide attempts
  • Physical exam
    • Height and weight measurement → 20% below expected is a bad sign
    • Vital signs, such as heart rate, blood pressure and temperature
    • Assessment of skin and nails for dryness or other problems

Treatment

  • Monitored nutrition plan
  • Psychological
    • Behavioural therapy
    • Cognitive analytic therapy
    • Cognitive behavioural therapy
    • Family interventions focused explicitly on eating disorders
  • Medications
    • Antidepressants may be helpful, but do not use Bupropion as it lowers the seizure threshold in anorexic patients

Bulimia Nervosa

Things you should know

  • Eating disorder characterized by binging and purging
  • Normal or overweight
  • Ego Dystonic
  • Risk factors:
    • Female
    • Age – often begins in the late teens or early adulthood.
    • Psychological and emotional issues.
    • Family history
    • Social / societal pressure.

I came in to see my physician assistant today because of…

  • Being preoccupied with body shape and weight
  • Living in fear of gaining weight
  • Binging behavior
    • Feeling of uncontrollable eating behavior
    • Eating until the point of discomfort or pain
  • Forcing to vomit or exercise too much
  • Using laxatives, diuretics or enemas after eating

Diagnosis

  • Psychological Evaluation
    • Diagnostic and Statistical Manual of Mental Disorders (DSM) diagnostic criteria for bulimia are:
      • Repeatedly binge, eating an abnormally large amount of food, and feel uncontrollable eating
      • Getting rid of the extra calories from bingeing by vomiting, excessive exercise, fasting, or misuse of laxatives, diuretics, enemas or other medications.
      • Bingeing and purging at least twice a week for at least three months.
      • Body shape and weight influence feelings of self-worth too much.
      • No presence of anorexia, an eating disorder with extremely restrictive eating behaviors.
  • Physical Exam
    • Russell’s sign – calluses on the knuckles from repeated forced vomiting.
    • Broken blood vessels in the eyes due to strain from vomiting
  • Dental Exam – may show cavities or gum infections.
  • Laboratory tests
    • Hypokalemia

Treatment

  • Nutrition education and achieving healthy weight
    • First goal of treatment will be to start getting back to a healthy weight
  • Psychotherapy
    • Cognitive behavioral therapy
    • Interpersonal psychotherapy
    • Family-based therapy
  • Medications
    • Antidepressants
      • Serotonin reuptake inhibitors  – Fluoxetine (Prozac)

Obesity

Things you should know

  • Obesity classification
    • Obesity – BMI > 30
  • Causes
    • Inactivity
    • Unhealthy diet and eating habits
    • Lack of sleep
    • Certain medications
      • Antidepressants
      • Anti-seizure medications
      • Antipsychotic medications
      • Corticosteroids
      • Beta blockers
    • Medical problems
      • Arthritis
      • Low thyroid function
  • Complications
    • High triglycerides and low high-density lipoprotein (HDL) cholesterol
    • Type 2 diabetes
    • High blood pressure
    • Metabolic syndrome — a combination of high blood sugar, high blood pressure, high triglycerides and low HDL cholesterol
    • Heart disease
    • Stroke
    • Cancer, including cancer of the uterus, cervix, endometrium, ovaries, breast, colon, rectum, esophagus, liver, gallbladder, pancreas, kidney and prostate
    • Sleep apnea
    • Gallbladder disease
    • Gynecologic problems, such as infertility and irregular periods
    • Erectile dysfunction and sexual health issues
    • Nonalcoholic fatty liver disease
    • Osteoarthritis
    • Skin conditions, including poor wound healing

I came in to see my physician assistant today because of…

  • Visit for unrelated topic
  • Difficulty sleeping
  • Feeling very tired every day
  • Back and joint pains
  • Low self-esteem
  • Low confidence levels

Diagnosis

  • Physical Exams
    • Waist circumference measurement
      • Female – waist circumference of more than 35 inches (88 centimeters, or cm)
      • Male – waist measurement of more than 40 inches (102 cm)
  • Laboratory tests
    • Cholesterol test
    • Liver function tests
    • Fasting blood glucose
    • Thyroid test
    • Electrocardiogram

Treatment

  • Diet programs
    • A reduced-calorie diet
      • Female – 1,200 to 1,500 calories
      • Male – 1,500 to 1,800 calories
  • Physical exercise
    • Increase daily activity
  • Behavior and lifestyle changes
    • Counselling
    • Support group
  • Prescribed weight-loss medications
    • Orlistat (Xenical) -Lipase inhibitor, unabsorbed fat is eliminated in the stool.
    • SSRI
  • Surgery
    • Laparoscopic gastric band
    • Laparoscopic gastric sleeve
    • Laparoscopic gastric bypass

Autistic Disorder

Things you should know

  • Characteristic behavior and social interactions
  • Symptoms are apparent before 3 years old
  • Strong genetic basis
  • M > F
  • Asperger Syndrome
  • Rett Syndrome

Symptoms

  • Be overly sensitive in sight, hearing, touch, smell, or taste
  • Have unusual distress when routines are changed
  • Difficulty with communication
    • Cannot start or maintain a social conversation
    • Communicates with gestures instead of words
    • Develops language slowly or not at all
    • Does not adjust gaze to look at objects that others are looking at
    • Does not refer to self correctly
    • Does not point to direct others’ attention to objects – occurs in the first 14 months
    • Repeats words or memorized passages, such as commercials
  • Social interaction
    • Does not make friends
    • Does not play interactive games
    • Withdrawn
    • May not respond to eye contact or smiles, or may avoid eye contact
    • May treat others as if they are objects
    • Prefers to spend time alone, rather than with others
    • Shows a lack of empathy
  • Responses to sensory information
    • Does not startle at loud noises
    • Has heightened or low senses of sight, hearing, touch, smell, or taste
    • May find normal noises painful and hold hands over ears
    • May withdraw from physical contact because it is overstimulating or overwhelming
    • Rubs surfaces, mouths or licks objects
    • Seems to have a heightened or low response to pain
  • Play
    • Doesn’t imitate the actions of others
    • Prefers solitary or ritualistic play
    • Shows little pretend or imaginative play
  • Behaviours
    • “Acts up” with intense tantrums
    • Gets stuck on a single topic or task
    • Short attention span
    • With very narrow interests
    • Is overactive or very passive
    • Shows aggression to others or self
    • Shows a strong need for sameness
    • Uses repetitive body movements

Diagnosis

  • Behavioral assessment
    • Medical history – mostly focuses on child’s development,
    • Clinical observations – observing the developmentally delayed child in different situations
    • Developmental and intelligence tests.
  • Physical assessments
    • Hearing tests – to determine whether hearing problems may be causing developmental delays

Treatment

  • Behavioral training and management
    • Uses positive reinforcement, self-help, and social skills training to improve behavior and communication.
    • Behavioral therapy
    • Sensory integration
  • Specialized therapies.
    • Speech therapy
    • Occupational therapy
    • Physical therapy
  • Medications
    • Psychoactive drugs or anticonvulsants
      • Antidepressants
      • Stimulants
      • Antipsychotics
  • Community support and parent training

Study TIps

Mind maps for note taking – www.mindmeister.com

 Key Terms and Ideas

  • What is the definition of obesity using BMI
    • > 30
  • A four year old who has a flat affect and does not make eye contact during your interview might make you think about what diagnosis?
    • Autism
  • Is anorexia ego dyssyntonic or ego syntonic
  • How does Orlistat work?
    • It is a lipase inhibitor

 

 


<< Click here to get 23 Psych questions straight from my book, The Final Step >>

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