patho Flashcards
acid base balance
pH level within normal 7.35-7.45
metabolic- pHCO3
respiratory - pCO2
pHCO3
kidneys
pCO2
lungs
acidosis
low pH and either
drop pHCO3- metabolic OR
rise in pCO2 - respiratory
alkalosis
high pH
rise pHC03- metabolic OR
drop in pCO2- respiratory
aldosterone
secreted by adrenal cortex (due to NA changes)
signals the nephrons in kidneys to reabsorb NA and thus water- increase osmolarity and control K levels
NA goes
water goes
Renin
secreted in kidneys d/t NA or fld volume
acts on angiotensinogen (plasma protein) conveting to angiotensin I which gets converted to angiotensin II (leads to vascular constriciton and aldosterone secretion
ADH
antidiuretic hormone- produced in brain, stored in pituitary and released with change in osmolarity of blood
acts on tubules in kidneys (leading to more water absorption and decrease osm)
Osm too low- ADH stop and water excreted in urine
BNp
brain natriuretic peptide
produced with increase in BV and BP
then NA resabsoprtion is inhibited and GFR increased
blood osm is decreased, urine output increased