Biochem - Eating Disorders

Question 1

Diagnostic criteria for Anorexia Nervosa

Answer 1

1. Refusal to maintain normal weight
2. Intense fear of gaining weight
3. BMI < 17.5
4. Disturbance of body image
5. Absence of 3 consecutive menstrual cycles

Question 2

Diagnostic criteria for Bulimia Nervosa

Answer 2

1. Recurrent episodes of binge eating (at least twice a week for 3 months)
2. Normal or above normal BMI
3. Sense of lack of control of eating during an episode

Question 3

Compensatory behaviors for Bulimia Nervosa

Answer 3

Vomiting
Laxatives
Over exercising
Fasting
Medications
Enemas
Diuretics

Question 4

Diagnostic criteria for Binge Eating Disorder

Answer 4

1. Recurrent episodes of binge eating
2. 3 or more of the following:
   - eating more rapidly
   - eating until feeling uncomfortably full
   - eating large amounts when not hungry
   - eating alone because of embarrassment
   - feeling depressed or guilty after eating
3. At least 2 days a week for 6 months

Question 5

What is refeeding syndrome?

Symptoms?

Answer 5

Rapid reinstitution of feeding a person with nutritional deprivation

-low electrolytes
-pulmonary congestion, resp failure
-cardiac failure
-

Question 6

Important electrolytes to consider when refeeding

Answer 6

1. K
2. Phosphate
3. Mg
4. Ca