Disorders of Appetite Flashcards
define polydipsia
excessive thirst or excess drinking
define adipsia
- inappropriate lack of thirst
- with consequent failure to drink in order to correct hyperosmolality
define anorexia
lack or loss of appetite for food
define obesity
abnormal or excessive fat accumulation that presents a risk to health
polydipsic and adipsic disorders can be divided into?
primary
secondary
is primary or secondary polydipsia more common?
secondary
what can cause secondary polydipsia?
Medical issues that disrupt any step in osmoregulation or alter ADH
where is ADH stored?
posterior pituitary
causes of secondary polydipsia - chronic medical conditions
Diabetes insipidus & mellitus Kidney failure Conn’s syndrome Addison's disease Sickle cell anaemia
causes of secondary polydipsia - medications
Diuretics
Laxatives (Both result in dehydration)
Antidepressants
causes of secondary polydipsia - dehydration
Acute illness Sweating Fevers Vomiting Diarrhoea Underhydration
treatment of diabetes insipidus
desmopressin
common symptoms of diabetes
always tired frequent urination sudden weight loss poor wound healing sexual problems always hungry blurry vision numb or tingling feet always thirsty vaginal infections
causes of primary polydipsia
mental illness: psychogenic polydipsia, schizophrenia, depression, anxiety, anorexia, drug use
brain injuries
organic brain damage
why is polydipsia a problem?
Kidney and bone damage Headache Nausea Cramps Slow reflexes Slurred speech Low energy Confusion Seizures
