This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Eating Disorders, Subject name: Psychiatry
Which of the following features is not seen in Anorexia Nervosa? 
Select and explain. 
A. Decreased total brain volume, B. Lowered metabolic rate, C. Impaired regulation in growth hormone levels, D. Decreased serum protein
D: Decreased serum protein
Answer: D: Decreased serum protein 
Explanation: Impoant medical complications related to Anorexia Nervosa Peripheral oedema Lanugo hair development Skin changes (dryness, scaling, yellow tinge caused by carotinemia) Lowered metabolic rate (bradycardia, hypotension, hypothermia) Normal thyroid-stimulating hormone levels; low triiodothyronine (T3) syndrome Normal or overstimulated adrenal axis; possible loss of diurnal variation in coisol Normal serum protein and albumin concentrations Impaired regulation in growth hormone levels; increased basal levels Decreased total brain volume/increased ventricular size on imaging