renal Flashcards
horseshoe kidney associated with
Turner’s syndrome
horseshoe kidneys get fixed low by
inferior mesenteric atrery
normal GFR
100 ml/min
nephrotic syndrome results in
albuminuria, hypoproteinemia, generalized edema, hyperlipidemia
normal filtration fraction
20%
location of juxtaglomular cells
efferent aterioles
effect of NSAIDS on aterioles
contrict (Prostoglandins dilate) afferent arteriole, increases RPF, GPR and FF stayes consistent (nsAid - Afferent)
Filtration fraction calulation
GFR/RPF
GFR estimated with
creatine clearance
RPF estimated with
PAH clearance
ACE inhibitors effect on arterioles
contstrict (Angiotensin II dilates) efferent arteriole, so RPF down, GFR up, so FF increases acE - Efferent)
plasma glucose level above which glocsuria begins
160mg/dL
plasma glucose level that saturates all glucose transporters
350 mg/dL
hartnup’s disease
deficnecy of neutral amino acid transporter (tryptophan), results in pellagra
reabsorbs all glucose and amino acids and most bicarb, Na, Cl, phophate and water
early PCT
PTH effect on early PCT
excretion of phosphate
Angiotension II effect on early PCT
increased Na, water, and bicarb absorption
part of nephron impermeable to sodium
thin decending loop
actively absorbes Na, K, Cl-
thick ascending loop
actively reabsorbs Na, Cla dnmakes urine hypotonic
early DCT
part if nephron impermeable to water
thick ascending loop
PTH effect on DCT
Ca reabsorption
aldosterone effect on kidney
insertion of Na channel on luminal side of collecting duct and reasorbs Na
ADH effect on kidney
inserts aquaporin channels on luminal side to reasorb Na and water
carbonic anhydrase inhibotors work at
PCT
thiazide diuretics work at
DCT
loop diuraetcs work at
thick ascending loop
K sparing (amiloride/traimterene) diuretics work at
collecting tibule
histology of JxG apparatus
modifed smooth muscle cells of afferent artierole
ANS receptor at JXG
B1
MOA of B blockers on BP at kidney
inhibit B1 recpetors at JGA, causing lower renin release
release Epo
intersistial cells in the peritubular cappilary bed in response to hypoxia
convert 25-OH vit D to active form
PCT cells
can cause hyperkalemia
digitalis,hyperOsmality insulin deficency lysis of cells acidosis Beta antagonist
can cause hypokalemia
hypo-osmolality
high insulin (insulin shifts potassium INTO cells, out of serum)
alkalosis
Beta agonist
low pH, low Pco2, low bicarb signs of
metabolic acidocis
high pH, high PCO2, high bicarb signs of
metabolic alkalosis
low pH, high PCO2, high bicarb sighs of
respiratory acidosis
high pH, low PCO2, low bicarb signs of
respiratory alkalosis
compensatory response to met acid
hyperventalation
compensatory response to met alk
hypoventalation
compensatory response to resp acid
increase of renal reabsorption of bicarb (delayed)
compensatory response to resp alk
decrease of renal reabsorption of bicarb (delayed)
can cause metabolic acidosis with an increased anion gap
methanol uremua diabetic ketoacidosis propalyne glycol iron tabs INH Lactic acidosis ethylene glycol salicytes
can cause resp acidosis
airway obstruction Acute lung disease chronic lung dx opiods weakening of resp muscles
can casue metabolc acidosis with NORMAL anion gap
hyperalimentation addisons renal tubula acidosis diarrhea acetaxolamids spirolactone saline infusion
can casue resp alk
hyperventalation (early high alt exposure)
early salicyte poisoning
can cause metabolic alk with compensation (hypoventalation)
loop diuretics
vomiting
antacid sue
hyperaldosterism