Bulimia Nervosa Flashcards
how many criteria are there for BN
5
criterion A for BN
recurrent episodes of binge eating
an episode of binge eating is characterized by BOTH of the following:
- eating, in a discrete amount of time (i.e within any two hours period) an amount of food that is DEFINITELY LARGER than what MOST people would eat in a similar period of time under similar circumstances
AND
- a sense of LACK OF CONTROL over eating during the episode (i.e a feeling that one cannot stop eating or control what or how much one is eating).
criterion B for BN
recurrent inappropriate compensatory behaviours in order to prevent weight gain, such as self-induced vomiting, misuse of laxatives, diuretics or other meds, fasting, or excessive exercise
criterion C for BN
the binge eating and inappropriate compensatory behaviours BOTH occur, on average, at least ONCE A WEEK for THREE MONTHS
criterion D for BN
self evaluation is unduly influenced by body shape and weight
criterion E for BN
disturbance does not exclusively occur during episodes of AN
what determines the minimum level of severity of BN
the frequency of the inappropriate compensatory behaviours
define mild BN
average 1-3 episodes of inappropriate compensatory behaviours per week
define moderate BN
average of 4-7 episodes of inappropriate compensatory behaviours per week
define severe BN
average of 8-13 episodes of inappropriate compensatory behaviours per week
define severe BN
average of 14+ episodes of inappropriate compensatory behaviours per week
what are the three essential features of BN
- recurrent episodes of binge eating
- recurrent inappropriate compensatory behaviours to prevent weight gain
- self evaluation that is unduly influenced by body weight and shape
what is considered a “discrete period of time” in the evaluation of BN
usually less than 2 hours
is continual snacking on small amounts of food throughout the day considered a binge?
no
is the impairment in control assoc. with binge eating absolute?
no–> someone may continue to binge while the phone rings but stop as soon as a friend enters the room
how do some people describe the sense of loss of control during binges?
some describe a dissociative quality
some describe that their binges are no longer characterized by an acute feeling of loss of control but rather by a more generalized pattern of uncontrolled eating
if individuals report they have abandoned efforts to control their eating, loss of control should be considered present
what is the most common antecedent of binge eating
negative affect
other than negative affect, list other triggers for binge eating
interpersonal stressors
dietary restraint
negative feelings related to body weight, shape and food
boredom
how long do binges usually last
often eat until uncomfortably, or painfully, full
what is the most common inappropriate compensatory behaviour
vomiting
- immediate effects = relief from physical discomfort and reduction of gaining weight
- in some cases, vomiting will become goal in itself, with person binge eating in order to vomit
what Rx medication do people sometimes take as a inappropriate compensatory behaviour
thyroid hormone–> to prevent weight gain
what Rx hormone do people with diabetes and BN sometimes omit
insulin (or reduce it) to avoid weight gain
when might exercise be considered excessive/i.e an inappropriate compensatory behaviour
when it significantly interferes with important activities
when it occurs at inappropriate times or in inappropriate settings
when individual continues to exercise despite injury or other medical complications
what weight range is common for those with BN
typically within normal weight or overweight (BMI above or equal to 18.5, below 30)
*occurs but is uncommon among obese individuals
