Week 6 - Eating disorders, personality disorders, etc Flashcards
Eating Disorders
- Approximately 5% of the population will experience an eating disorder at one point in their lives
- Eating disorders are behavioral conditions characterized by severe and persistent disturbance in eating behaviors and associated distressing thoughts and emotions
- For ppl living w/ eating disorders, their self-esteem is primarily determined by their ability to control weight and shape
o Attempt to follow w/ restrictive dieting binge-eating episode - Usually in adolescence or early adulthood
- Preoccupation – excessive thinking about weight or shape
- Fear of becoming fat is a main problem
- Entire mental focus is on one goal: weight loss
o Ignores body signals or cues such as hunger, and concentrates all efforts on controlling food intake - Interoceptive awareness – ability to identify and respond to emotional and visceral clues such as hunger
- Types of Eating Disorders (DSM-5, 2013)
o Anorexia nervosa
o Bulimia nervosa
o Binge eating disorder
Bio/psycho/social/spiritual risk factors for eating disorders
Spiritual:
* Sense of well-being
* Quality of life
* Attitudes
Social:
* Ideals of beauty
* Media
* Fashion
* Cultural
Biologic:
* Dieting
* Metabolic rate
Psychological:
* Low self-esteem
* Body dissatisfaction
* Ineffectiveness/lack of assertiveness
Continuum of Eating Experience:
- Unrestricted eating watchful eating increasing weight and shape preoccupation clinical eating disorders
- Watchful eating – paying attention to food composition and calories, tracking calories, and physical activity
o May become dissatisfied w/ body appearance and weigh self more than usual - Increasing weight and shape preoccupation (concern)
o More rigidly adheres to food selection and eating patterns
o Insistent calorie counting, preoccupation w/ food composition and exercise
o May overeat as a response to dietary restriction
o Tracks weight losses and gains
o Chemical preparations and supplements to target appearance ideals
o Binge eating and purging may increase in frequency and duration
What is orthorexia?
- Orthorexia – obsessive diet that includes only healthy foods only -> unhealthy obsession w/ specific food and severe weight loss
often can result in malnutrition
Concepts of binge eating and dietary restraint
Binge eating
* Rapid, episodic, impulsive, and uncontrollable ingestion of large amount of food over a short period of time (1 to 2 hours)
* Eating followed by guilt, remorse, and severe dieting
o Eating a whole cheesecake or 2 in one short sitting
Dietary restraint
* Restricting intake is believed to explain the relationship between dieting and binge behaviour.
* Restraining intake is predictive of overeating.
What is the diagnostic criteria for anorexia nervosa?
Diagnostic Criteria: Anorexia Nervosa
Restriction of energy intake relative to requirements leading to a significantly low body weight
Intense fear of gaining weight or of becoming fat or persistent behavior that interferes with weight gain even though at a significantly low weight
Disturbance in the way in which one’s body weight or shape is experienced/perceived undue influence of body weight, or shape on self-evaluation or persistent lack of recognition of the seriousness of current low body weight
DSM-5:
Does not require presence of amenorrhea (absence of period)
Use of body mass index (BMI) cutoffs to denote severity
R.I.D.
What are the types of anorexia nervosa and describe it.
RESTRICTING TYPE
* Dieting
* Fasting
* Excessive exercise
BINGE EATING/PURGING TYPE
* Self-induced vomiting
* Misuse of laxatives
* Misuse of diuretics
* Misuse of enemas
All to lose weight ^
Anorexia Nervosa: Diagnostic Criteria (DSM-5, 2013)
- Onset in adolescence or early adulthood.
- Chronic condition with relapses characterized by significant weight loss.
- Higher all-cause mortality than all other psychiatric disorders with the exception of substance abuse and postpartum admission.
- Body image distortion - occurs when the individual perceives his or her body disparately from how the world or society views it.
- Low body weight
What age range and gender mainly have anorexia nervosa?
Mostly 14-16 years old and females
Anorexia Nervosa: Epidemiology
- 0.3% to 1% prevalence
- Mostly in 14- to 16-year-olds
- Female-to-male ratio: 10:1
- Culturally defined body weight expectations
- Vulnerable b/c of stressors associated w/ body image, autonomy, peer pressure, media, etc.
- Familial predisposition
- Comorbid with mood or anxiety disorders, alcohol abuse/dependence, and depression
Anorexia Nervosa: Bio-psychosocial Aetiologies
Spiritual distress
Biologic:
* Increased genetic vulnerability
* Dieting starving
* Overexercising
* Decreased awareness of hunger
* OCD
* Decreased serotonin activity
Social:
* Idealization of thinness – media
* Pursuit of thinness
* Enmeshment with family
o Too involved with family and no personal boundaries
* Overprotective family
Psychological:
* Separation – individuation struggle
* Sexuality conflicts
* Decreased awareness of emotional cue
* Feminist view role pressures
* Negative body image – body dissatisfaction
Anorexia Nervosa: Social Theories
Social expectations:
o Societal norms and expectations.
o Media influence, fashion industry, peer pressure
Media exposure are strong predictors of girls’ dietary restraint
o Body dissatisfaction is related to low self-esteem, depression, dieting, binging, and purging.
Family responses
o Enmeshment – no personal boundaries
Leads to poor autonomy and higher severity of anorexia nervosa (AN)
refers to an extreme form of intensity in family interactions.
Can lead to self-esteem issues due to lack of identity
o Overprotectiveness – acting on high degree of concern for another
Spiritual
o Core struggles in eating disorders are spiritual in nature.
o Individuals tend to lose the ability to acknowledge their self-worth and identity.
o Feeling distant and disconnected from family and friends.
Describe the illness severity BMI ratings for anorexia nervosa.
Mild = BMI > 17
Moderate = BMI 16-16.99
Severe = BMI 15-15.99
Extreme = BMI <15
Interdisciplinary Treatment for Anorexia
Goals
o Initiating nutritional rehabilitation
o Resolving conflicts around body image disturbance
o Increasing effective coping
o Addressing underlying conflicts
o Assisting family with healthy functioning and communication
o For full recovery:
Weight restoration alone is not sufficient goal
Must address distorted body image, thoughts/behaviours, etc.
Restoring weight influences symptom remission more than medications
Treatment modalities
o Hospitalization necessary if health deteriorates
o Interdisciplinary approach
o Pharmacologic approaches
Refeeding syndrome
o Body not used to process a lot of food at once after being anorexic and should build on the amount consumed
Epidemiology: Bulimia Nervosa
- Approximately 1% to 3% of young women develop BN in their lifetime.
- Onset is in adolescence or early adulthood (older than anorexia nervosa).
- In the community setting, 1 case in 4 of BN is a male.
- Related to Western culture social values.
- First-degree relatives more likely to develop.
- Comorbid conditions include substance abuse and anxiety disorders.
Risk factors for BN is dieting
o Can turn into dietary restraint -> binge eating and purging
o Others include body dissatisfaction and anxiety stressors
What is the weight difference between anorexia and bulimia nervosa?
Bulimia has normal weight.
Bulimia Nervosa
- Recurrent episodes of binge eating.
- Does not come to the attention of parents and peers as quickly as AN.
- Treatment is outpatient therapy.
- Usually normal weight.
- Dietary restraint can lead to excessive hunger binge eating
What is the diagnostic criteria for bulimia nervosa?
Recurrent episodes of binge eating and purging at least once a week for 3 months.
Lack of control during eating and concern for body weight
Diagnostic Criteria: Bulimia Nervosa
Recurrent episodes of binge eating
A sense of lack of control over eating during the episode
Recurrent compensatory behaviors to prevent weight gain including self-induced vomiting, misuse of laxatives, diuretics or other medications, fasting, excessive exercising
Binge eating and compensatory behaviors occur at least once a week for three months
Excessive Concern with body shape and weight
RBP CC
Clinical Course of Bulimia
- Few outward signs
- Binge and purge (expelling food) in secret
- Treatment often delayed for years b/c might not come to attention to parents
- Treatment initiated when control of eating is lost
- Treatment is outpatient therapy.
- Usually normal weight.
- Complete recovery after treatment initiated
Describe the binge-purge cycle.
Dietary restraint -> hunger <–> binge eating <–> shame/humiliation <–> dieting/purging -> back to dietary restraint
What is the illness severity levels of bulimia nervosa (mild to extreme)?
Mild = 1-3 episodes of compensatory behaviours/week
Moderate = 4-7 episodes of compensatory behaviours/week
Severe = 8-13 episodes of compensatory behaviours/week
Extreme = 14+ episodes of compensatory behaviours/week
Nursing Management of bulimia
Assessment
o Similar to anorexia nervosa
o Binging/purging behaviour
Diagnosis
Interventions
o Biologic
Nutritional counselling/management
Pharmacologic
o Psychosocial
CBT and IPT can be used.
Behavioural interventions (cue elimination, self-monitoring).
Self-monitoring.
Identifying disordered eating patterns.
Interrupting binge–purge cycle.
Education.
Group therapy and family intervention.
Interdisciplinary Treatment for Bulimia
- Usually takes place in an outpatient setting
- Focuses on psychological issues including:
o Boundary setting and separation–individuation conflicts (not being able to pursue goals that differ from family and friends)
o Changing problematic behaviours and dysfunctional thought patterns and attitudes
o Spiritual component - Nutritional counselling