Eating Disorders and Sexual Disorders MCQs

Psychiatry · 13 free questions with answers & explanations.

1. A 19-year-old woman presents with a BMI of 14.5 kg/m2, intense fear of gaining weight, distorted body image (believes she is fat despite being severely underweight), and amenorrhoea for six months. She severely restricts her food intake and exercises excessively. Which electrolyte abnormality is most life-threatening in this condition and most commonly causes sudden cardiac death?
2. A 20-year-old woman presents with parotid gland hypertrophy, dental enamel erosion (perimylolysis), calluses on her knuckles (Russell's sign), and normal BMI. She is diagnosed with Bulimia Nervosa. Which electrolyte abnormality is most characteristic?
3. In DSM-5, Gender Dysphoria differs from the ICD-11 concept of Gender Incongruence in which important way?
4. A 22-year-old woman with Bulimia Nervosa (BN) is started on fluoxetine. The FDA-approved dose of fluoxetine for bulimia nervosa is:
5. Anorexia Nervosa has the highest mortality rate among all DSM psychiatric disorders. The most common cause of death in anorexia nervosa is:
6. A 17-year-old girl weighs 41 kg (height 165 cm, BMI 15.1 kg/m²). She fears becoming fat, restricts caloric intake to fewer than 500 calories/day, and has amenorrhea for 6 months. She believes her thighs are 'huge' despite being severely underweight. Her electrocardiogram shows a prolonged QTc interval. Which electrolyte abnormality and its associated complication should be MOST urgently addressed?
7. A 23-year-old woman has recurrent episodes of binge eating (consuming large amounts of food rapidly with loss of control) followed by self-induced vomiting, occurring at least once per week for 3 months. She is of normal weight. Dental examination shows enamel erosion. What is the PATHOGNOMONIC physical sign found on examination of her hands?
8. A 19-year-old woman with anorexia nervosa (restricting type, BMI 14.5) is admitted. On day 3 of refeeding, she develops oedema, muscle weakness, cardiac arrhythmias, and confusion. Serum phosphate is 0.4 mmol/L. What is this syndrome and what is the pathophysiological trigger?
9. DSM-5 distinguishes gender dysphoria from paraphilias (paraphilic disorders). Which statement accurately reflects this distinction as codified in DSM-5?
10. A 19-year-old woman with Anorexia Nervosa (restricting type) is admitted with BMI 13.5 kg/m² and is started on nasogastric feeding. Two days later she develops severe hypophosphataemia, hypokalaemia, and hypomagnesia. The most likely complication being encountered is:
11. According to DSM-5, Gender Dysphoria in adults requires marked incongruence between experienced/expressed gender and assigned gender for at least how long, and which associated condition was removed from DSM-5 per its revision?
12. Which electrolyte abnormality is the MOST dangerous and directly life-threatening complication associated with recurrent self-induced vomiting in bulimia nervosa?
13. A 19-year-old woman has BMI 14.5 kg/m², intense fear of weight gain, amenorrhoea, and distorted body image. Which electrolyte abnormality is most dangerous and potentially life-threatening in this patient?