Table 1

Signs and symptoms of anorexia nervosa4 6 7

Physical examination
 EmaciationBrittle nails
 Lanugo hairConstipation
 BradycardiaDehydration
 HypotensionEnlargement of parotid gland
 Cold peripheriesDry skin
 Decreased core body temperatureLoss of enamel on teeth
Blood test
 Hyponatraemia, hypokalaemia, hypochloraemia, hypocalcaemia, hypomagnaesia, hypophosphataemia (predisposes to osteoporosis and cardiac abnormalities which can result in life threatening arrhythmias)
 Metabolic alkalosis
 Anaemia
Endocrine
 Amenorrhoea-oligomenorrhoea
 Delayed puberty
 Hypothyroidism
 IGF-1 deficiency
 Hypoglycaemia
 Hypercholesterolaemia