12: Eating Disorders Flashcards
Anorexia or bulimia?
Frequency of episodes: 1 time/week.
Bulimia
What do labs look like in anorexia? Hemoglobin? BUN? Potassium? pH? Electrolytes? Cholesterol?
Hemoglobin = Falsely elevated BUN = Elevated or low Potassium = Hypokalemia pH = Acidosis Electrolytes = Normal when purging stops Cholesterol = Elevated
What screening is used for eating disorders?
SCOFF
Sick - Do you make yourself sick because you feel uncomfortably full?
Control - Do you worry you lost control of over how much you eat?
One - Have you recently lost 1 stone (14 pounds) in a 3-month period?
Fat - Do you think you’re fat when others say you’re thin?
Food - Does food dominate your life?
What hormone is produced in the fat cells and is involved in satiety signaling?
Leptin. Current research disproves that there is an abnormality in leptin receptors for anorexics.
What neurological complications can occur with anorexia (5)?
- Seizures
- Cognitive and memory dysfunction
- Depression
- Anxiety
- Abnormal EEG
Which electrolytes will be off with bulimia?
- Low calcium
- Low sodium
- Low chloride
- Metabolic acidosis (loss of stomach acid)
What BMI indicates anorexia?
Below 17.5
A ROS with anorexia may reveal what symptoms (7)?
- Dizziness, blackout, weakness
- Pallor, easy bruising
- Cold intolerance
- Hair loss, dry skin
- Vomiting, diarrhea, bloating, abdominal pain
- Muscle cramps, joint pains, chest pains
- Menstrual irregularities
What type of food is usually involved in binging?
High calorie, high carb
Majority of bulimics meet criteria for at least 1 personality disorder. Which 3 are most common?
- OCD
- Borderline personality disorder
- Depression
They often also have a hx of substance abuse, sexual conflicts, impulsive behaviors, promiscuity, and self-mutilation.
Anorexia or bulimia?
Cycles of binge eating.
Bulimia
_____ can be present on PE if using ipecac for vomiting.
Cardiomyopathy
What percentage of bulimics have a full recovery within 2 years?
50%
What are physical s/sx of bulimia (5)?
- Russell’s sign (calluses or scars on backs of hands from inducing vomiting)
- Parotid swelling (bilateral)
- Loss of dental enamel (and bruises, lacerations of palate and post-pharynx)
- GERD
- Constipation
T/F Healthy People 2020 includes eating disorders in their goals.
True. Goal is to reduce proportion of adolescents with eating disorders from 14% to 10%.
Are eating disorders more common with males or females?
Females
How is refeeding syndrome prevented?
Refeed patient slowly. Start with 500 calories above what the patient eats. Add 200-300 calories q 3-4 days.
What physical findings and complications can be present in bulimia (11)?
- Electrolyte imbalances
- EKG (QTc prolongation)
- Pancreatitis
- Constipation
- Loss of gag reflex (GERD)
- Parotid enlargement
- Dental enamel erosion
- Seizures
- Cognitive/memory dysfunctions
- Depression
- Anxiety
What psychiatric s/sx may be present with bulimia (3)?
- Suicidal ideation
- Depression
- Anxiety
Anorexia or bulimia?
Restriction of energy intake.
Anorexia
Anorexia or bulimia?
Intense fear of weight gain even though underweight.
Anorexia
What is perhaps the most dangerous complication of anorexia?
Refeeding syndrome. Hypophosphatemia and eventual cardiac decompensation b/c the sudden high caloric intake leads to possibility of HF.
What percentage of the population meets DMS criteria for eating disorder?
1%
What are 5 clues for anorexia?
- Rapid/severe weight loss
- Dieting, taboo foods, calorie counting
- Excessive exercise
- Focus on body image
- Symptoms such as weakness/fatigue
What hormone is low in anorexia?
Serotonin (mood, stress response, eating behaviors) (specifically 5-hydroxyindoleacetic acid is low)
What is the best way to detect bulimia (85%)?
Serum electrolyte screening panel combined with examination of teeth, hands, and salivary glands.
What are some social risk factors for eating disorders (3)?
- Obesity
- Media impact on body image norms
- Modeling or specific sports
What are clues to bulimia (3)?
- Weight cycles (gain/loss)
- Trips to bathrooms after meals
- Vomiting, laxatives, enemas, excessive exercise
What hematologic complications can occur with anorexia (4)?
- Easy bruising
- Leukopenia
- Anemia
- Thrombocytopenia
Which ethnicity has the most eating disorders?
Caucasion
More than 90% female. 95% Caucasian. More than 75% are adolescents at first occurrence.
T/F Severe dieters are more likely to develop an eating disorder.
True. It is a mild variant on the eating disorder spectrum and can become full-blown. Need to be monitored.
T/F Labs are performed in suspected anorexia to make a diagnosis.
False. Diagnosis is clinical. Labs are needed for baseline.
What supplements should be given during anorexia recovery (2)?
- Calcium 12-1500 mg daily (3-4 glasses of milk)
2. Multivitamin 400 IU daily
What percentage of anorexics become bulimic?
50%
What is the common starting point for eating disorders?
Dieting. Other hypotheses include familial transmission, biochemical factors, family functioning, and avoidance of sexual pressure.
T/F Bulimia patients have BMIs less than 17.5.
False. Anorexics do. Bulimics often present at normal weight.
What is the general management for anorexia (3)?
- Work as a team
- Involve family
- Consider medication (low priority)
When is the usual onset of eating disorders?
15-19
What cardiac complications can occur with anorexia (5)?
- Bradycardia
- Hypotension
- EKG abnormalities
- Syncope
- MVP
What is the mortality rate of anorexia?
4%
What is the mean duration of bulimia before diagnosis?
6 years
What is the nutrition goal for BMI?
Help patient regain BMI of at least 16 or above.
T/F Anorexia is usually treated inpatient.
False. Usually outpatient, but may require initial or periodic hospitalizations.
What are protein/fat goals for anorexia recovery?
Protein = 2-3 servings Fat = 30-50 grams/day
What triggers binging (2)?
- Dysphoric mood state
2. Lack of control
What MSK complications can occur with anorexia (5)?
- Muscle wasting
- Loss of sub-Q fat tissue
- Low weight
- Low BMI/bone density
- Pathologic/stress fractures
T/F Esophageal rupture is an emergency that can occur in bulimia.
True
Binging usually occurs in less than _____.
2 hours
What is the mortality rate of bulimia?
3.9%
What routine tests are performed with anorexia (6)?
- CBC with diff
- ESR
- Electrolytes
- UA
- Serum protein
- Albumin
What are indications for hospitalization in anorexia (7)?
- BP below 85/50
- Severe malnutrition
- Dehydration
- Electrolyte imbalances
- EKG abnormalities
- Sinus bradycardia
- Suicidality
What metabolic/endocrine complications can occur with anorexia (5)?
- Cold intolerance
- Hypothermia
- Amenorrhea
- Delayed puberty
- Hypoglycemia
What are some psychological risk factors of eating disorders (4)?
- Psych diagnoses
- Concerns about self-control, low self-esteem, or self-efficacy
- Stress from developmental tasks
- Hx of abuse
What is a reasonable weight gain goal during recovery for outpatients?
0.5-4 pounds/week until minimum goal is met.
Anorexia nervosa and bulimia nervosa are serious disturbances in eating that include concerns about body shape and weight. The DSM-5 added what 2 categories?
- Binge-eating disorder
2. Avoidant/restrictive food intake disorder
T/F There is speculation that anorexia is a biological condition.
True. Investigating disruptions in pituitary, hypothalamus, and neurotransmitters.
Anorexia or bulimia?
Recurrent inappropriate compensatory behaviors to prevent weight gain.
Bulimia
What are some family and biological risk factors for eating disorders (4)?
- Obesity
- Affective disorders
- Serotonin dysfunction
- Onset of puberty
- Family hx of disordered eating or alcoholism
T/F There are pro-eating disorder groups on the internet who view them as alternative lifestyles and offer support and encouragement.
True. Must be aware of this as it presents a challenge to helping those with eating disorders.
Who is at increased risk for eating disorders (3)?
- Athletes
- Diabetics
- Obese
What is a reasonable weight gain goal during recovery for inpatients?
0.5 pound/day
When is the peak onset for anorexia and bulimia?
- Anorexia = 15-19
2. Bulimia = 18-23 (may arise from anorexia)
What GI complications can occur with anorexia (3)?
- Hypomotility/constipation
- Abdominal pain
- Elevated liver enzymes
Anorexia or bulimia?
Distortion in body weight/shape experience.
Anorexia
Why would you order T4, TSH, stool, HIV, pregnancy, PPD, EKG, CXR, or bone density in anorexia?
To r/o other DDx and to check for s/sx (bone density).
What is the main characteristic of bulimia?
Binge eating
What are the common features between anorexia and bulimia (7)?
- Dysfunctional eating patterns
- Underlying pysch issues
- Low self-esteem
- Depression
- Family dynamics
- Body image disturbance
- Weight changes/fluctuations