Eating And Sleep-Wake Disorders Flashcards
Anorexia nervosa is characterised by what?
Person eats only minimal food or exercises vigorously to offset food intake
What is the death rate for people with anorexia nervosa?
Up to 20% die as a result of the disorder with slightly more than 5% dying within 10 years
What disorder has the highest death rate of all topics covered in the text?
Anorexia nervosa
What is the suicide rate for women with anorexia nervosa?
18 times more likely than 15-34 year old females in the general population
BMI less than 18.5 is generally considered?
Seriously undernourished
BMI of 40 or more are generally considered?
Severe or morbidly obese
The hallmark of bulimia nervosa is? page 269
- Eating large amounts of food typically more junk food than fruit and vegetables - and amount of food eaten is that the eating experience is out of control
- attempts to compensate for binge eating almost always by purging like vomiting immediately after eating, laxatives, diuretics (drugs that result in loss of fluid)
Medical consequences of chronic bulimia with purging include
- Salivary gland enlargement caused by repeated vomiting giving face a chubby appearance
- tooth enamel erosion and tear of esophagus
- chemical imbalance of bodily fluids including sodium and potassium ( called electrolyte imbalance)
- electrolyte imbalance can cause cardiac arrhythmia, seizures and renal (kidney) failure
- laxative abuse can cause severe constipation or permanent colon damage
Associated psychological disorders suffered by individuals with bulimia include
Anxiety and mood disorders
- 80.6% of individuals had an anxiety disorder at some point in their lives
- 66% of adolescents presented with a co-occurring anxiety disorder
- 20% meet criteria for mood disorder when interviewed and between 50% and 70% meet criteria at some point during course of disorder
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Individuals with Bulimia are within what % of their normal body weight?
10%
Similarities between anorexia and bulimia are?
Both characterised by a morbid fear of gaining weight and losing control over their eating.
Differenced between anorexia and bulimia are?
People with anorexia are proud of both their diets and extraordinary control. People with bulimia are ashamed of both eating issues and lack of control
DSM-V specifies two subtypes of anorexia nervosa. In the restricting type individuals diet to limit calorie intake; in the binge eating purging type they rely on purging. What is the difference between the bing eating purging type and bulimia?
Unlike individuals with bulimia they binge on relatively small amounts of food and purge constantly ( sometimes every time they eat
Prospective data collected on 136 individuals with anorexia revealed not much difference on severity of symptoms or personality between the two subtypes thus concluding that the restrictive type and the bing eating purging type may rather reflect?
Stages or phases of anorexia
For this reason DSM criteria specify that subtyping refer only to the past 3 months
DSM criteria specify that anorexia body weight as significantly low meaning 15% below normal
Medical consequences of anorexia nervosa are?
- amenorrhea (cessation of menstruation) which often occurs in bulimia also. Because of inconsistency with cases dropped as a diagnostic criteria
- dry skin, brittle hair or nails, sensitivity to cold temperatures, lanugo (downy hair on limbs and cheeks), cardiovascular problems such as low blood pressure and heart rate
- electrolyte imbalance if vomiting part of routine resulting in cardiac and kidney problems as in bulimia
Associated psychological disorders with Anorexia
- anxiety and mood disorders like with bulimia
- depression at some point in life 71%
- a common anxiety disorder is obsessive compulsive disorder with obsessions relating to gaining weight and rituals to remove such thoughts
- like bulimia substance abuse is common and In conjunction with anorexia is a strong predictor of suicide
What classify binge eating disorder?
Experience marked distress because of binge eating but do not engage in extreme compensatory behaviours and therefore cannot be diagnosed with bulimia.
Facts about binge eating disorder include; p 273
- a greater likelihood of remission and a better response to treatment compared to other eating disorders
- individuals who meet preliminary criteria are often found in weight control programs (18 to 30%)
- crossing over to bulimia is very common
Predictive variables of eating disorders p 274 concerning young women ;
- negative affect and functioning impairment predicted all DSM-V eating disorders
- internalisation of the thin ideal, body dissatisfaction, dieting, overeating, and mental health care predicted bulimia, binge eating disorder and purging disorder
- low BMI and dieting predicted anorexia