Question
All the following are features of Anorexia Nervosa except :
| A. |
Predominantly seen in females
|
| B. |
BMI index is higher than normal Population
|
| C. |
Amenorrhea is rare
|
| D. |
Malabsorption Syndrome is most common cause
|
Show Answer
|
Correct Answer » B
Explanation
|
|
Detailed Explanation:
Clinical Reasoning for the Correct Answer:
– Anorexia Nervosa is characterized by significantly low body weight resulting in a BMI *below* the normal population average, typically <17.5 kg/m² or less than 85% of expected weight.
– Elevated BMI contradicts the diagnostic criteria for anorexia nervosa and is therefore incorrect.
Why Option A is Incorrect:
– Anorexia nervosa predominantly affects adolescent and young adult females, with female-to-male ratio approximately 10:1.
– This is a well-established epidemiologic fact.
Why Option C is Incorrect:
– Amenorrhea (absence of menstruation) is a common clinical feature in females with anorexia nervosa due to hypothalamic dysfunction and low energy availability.
– Saying amenorrhea is “rare” is contrary to clinical evidence and diagnostic criteria (previously amenorrhea was a core criterion in DSM-IV).
Why Option D is Incorrect:
– Malabsorption syndrome is *not* a common cause of anorexia nervosa.
– Anorexia nervosa is primarily a psychiatric disorder characterized by food restriction and psychological factors, not malabsorption issues.
– Malabsorption syndromes cause weight loss via loss of nutrients despite adequate intake, but they are different diagnoses with distinct pathophysiology.
