Disorders of appetite Flashcards
what is polydipsia
excessive thirst or drinking
adipsia
inappropriate lack of thirst
anorexia
lack or loss of appetite for food
obesity
abnormal or excessive fat accumulation
causes of secondary polydipsia
chronic medical conditions
medications
What is diabetes mellitus
high blood sugar
what is diabetes insipidus
pituitary problem - impairs ADH production
Treat with desmopressin
symptoms of diabetes mellitus
tiredness frequent urination wounds will not heal sexual problems hunger blurry vision numbness/ tingling thirst
medical conditions leading to polydipsia
acute kidney disease
Conn’s syndrome - primary aldosteronism
Addison’s disease
primary polydipsia causes
mental illness (psychogenic polydipsia) - schizophrenia/ mood disorders/ anorexia/ drug use
brain injuries
organic brain damage
why is polydipsia a problem
disrupting membrane potentials - kidney/ bone disease headache cramps seizures nausea
mechanism of adipsia
increased osmolarity of urine leads to secretion of ADH = water retention = sensation of thirst decreases
pathophysiology of anorexia
low BMI, continuous weight loss, amenorrhea, mood swings
Treatment of obesity
Diet and exercise together
criteria for bariatric surgery
BMI over 40
35+ comorbidities
Benefits of bariatric surgery
Weight loss 5 yrs after surgery
Remission of comorbidities
GLP1/2 function
stimulate insulin release + inhibit glucagon
Ghrelin function
hunger hormone which activated NPY
Peptide YY function
saiety
what is an eating disorder
abnormal eating habits
- binge eating
- anorexia
- bulimia
- avoidance/ restrictive food intake disorder
why is obesity increasing
cheap, calorie-rich beverages + fast food + sweets
what is the screening of obesity?
height, weight and abdominal girth
BMI
