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urinary path
2nd year urinary pathophys
66
Veterinary Medicine
Professional
12/14/2010

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Cards

Term
do ischemic and toxic injury occur separately
Definition
no! they work togethre like evil friends. for most toxic agents to cause disease, hypoperfusion and ischemia also need to be present and many toxins are both directly toxic and cause hypoperfusion
Term
NSAIDS cause
Definition
paillary necrosis. stromal cells need prosteglandins to keep O2. w/o ischemia and hemorrhage.
Term
cisplatin
Definition
renal vasoconstriction and direct toxic to tubules
Term
three ways tubular injury decreases GFR
Definition
TG feed back with Macula Densa
increased tubular pressures
increased permeability of tubules means leakage into interstitium
Term
amphotericin B
Definition
pores on tubular cell membranes-leaky
Term
melamine/cyanuric acid
Definition
contaminated pet foods- grenn brown ccrystals form in tubule= obstruction
Term
name two dog breeds prone to genetic disorders which can cause tubular obstruction and tubular injury
Definition
dalmations- uric acid defect, urates
newfies- cystine ?
Term
aminoglycoside abx
Definition
lysosomal damage to tubular epithelial cells
Term
what is pigment toxicity
Definition
hemeoglobin, myoglobin directly toxic to tubular epithlium. reactive ocygen species generated. vasoconstriction and ischemia follow. casts= tubular obstruction.
Term
glycolic acid
Definition
ethylene glycol breakdown. metabolic acidosis. final product oxalic acid percipitates with calcium (calciumoxalate monohydrates) obstruction!!
Term
heavy metals
Definition
bind sulfahydril groups on proteins inhibit critical cellular functions.
Term
Basenji dogs have...
Definition
Fanconi syndrome. can't reabs glx, AA, Na, Phos, HCO3 Cl transport fucked
Term
how do renal tubular cells repair?
Definition
"dedifferentiate" express fetal molecules and proliferate. Give your patients supportive care! 2-3 days for repair to appear structurally on histo
Term
sheep can get ____ if the have goat food
Definition
copper toxicity+ renal failure from hemolysis. can happen with stress too. release Cu from liver.
Term
2 types of mesangial cellls
Definition
contractile/structural
phagocytic/proto-inflammatory
Term
does BM wrap all around capillary endothelium
Definition
no. space (the mesangium)! immune complexes stuck here!!
Term
what if my dog has a type IV collagen mutation?
Definition
tough luck. renal failure young age.
(x lnked males)
Term
what do shapei's get
Definition
amyloid plaques.
Term
membranous change
Definition
thickened basement membrane and mesangium. deposits.
monocytes invade glom. hypercellular.

retraction of foot processes= no more filtration barrier!
Term
proliferative change
Definition
monocytes invade glom. hypercellular.

retraction of foot processes= no more filtration barrier!
Term
does glom dz cause problems to the other tubules or interstitium?
Definition
yeah! degeneration, necrosis, fibrosis, b/c glom disease cuases angry environment for adjacent tubules and other tissue.
Term
causes for proteinuria
Definition
inflammatory, hemorrhagic, hemoglobinuria, myoglobinuria, glom dz, tubularinterstitial disease (can't reabs/ hyperfiltration/tubular necrosis)
Term
antithrombin III
Definition
often lost in glom dz. hypercoag.
Term
PAF
Definition
prostatic antibacterial fraction. bactericidal goo!
Term
white spotted kidney of calves
Definition
hematogenous septicemic lesion. not acending! E. coli or Salmonella
Term
signs of pyelonephritis
Definition
fever, lumbar pain, vomiting, hematuria, pyuria, can see uremia if causing ARI, dairy cows have deacrease milk production.
Term
signs of chronic pyelonephritis
Definition
poor doer, hematuria, PU/PD. can be asymptomatic!
Term
how does lepto get in
Definition
right through your mucus membrane. no injury needed. sneaky buggar.
Term
signs of lepto
Definition
azotemia, uremia, liver variably effected, vasculitis, thrombocytopenia, coagulopathy.
Term
LOS
Definition
Lepto lipopolysaccharide.
Term
abortion in sheep, sudden milk loss in dairy cow, acute hemolysis in calves.
Definition
LEPTO!!!
Term
Why would a horse get chronic uveitis?
Definition
LEPTO! can be recurrent. vision loss. can happen months or years later. can also cause abortion in horses.
Term
do cats get lepto?
Definition
badass cats get infected but don't show clinical signs.
Term
Name a radiolucent urolith
Definition
cystine, urate
Term
predisposing factor for Calcium Oxalate uroliths
Definition
Hypercalciuria, hyperoxaluria, hyperadrenocorticism, low dietary calcium (binds up Ox in guts poo out). little dogs and fancy cats.
Term
feedlot cattle get which stones?
Definition
struvite. high phosphate ration. sheeps too :(
Term
Sheep eating stubbly grass can get
Definition
Oxalate stones.
Term
Otis died from...
Definition
Clover stones? urethra process impacted with Ca carbonate and organic material. estrogenic pasture.
Term
65% of cats with FLUTD have...
Definition
Idiopathic FLUTD.
Term
the incidence of _____ uroliths has gone from 90--->50% whereas _______ has gone from 5--->60%.
Definition
struvites. calcium oxalate. bc of acidifying diets. disolving bone increasing Ca in urine. also increased Na Cl in diets.
Term
residual urine volume should not exceed
Definition
0.4 mg/kg
Term
what caues detrussor-urethral dyssynergia
Definition
masses/ degeneration of reticulospinal tract.
Term
causes of stress incontinence
Definition
pelvic bladder, urethral dysplasia.
Term
[image]
This dog has hard time going pee. everytime he starts he cuts off mid pee. what's going on? we put him on phenoxybenzamin. How does that work?
Definition
He's got urethral spasticity. maybe he was catheterized too long? phenoxybenzamine is a muscle relaxant.
Term
Oh no this dog has a flacid bladder and can't get the pee moving. what drug should we use?
Definition
bethanochol. a cholenergic agonist
Term
What drug should I give to a doggy with stress incontinence
Definition
Phenypropanolamine. a sympathomimetic.
Term
My cat has detrusor spasticity. He pees evey five minutes. What should I give him?
Definition
Anticholenergic.
Propantheline, flavoxate, ocybutynin.
Term
Enalapril
Definition
Angiotensin converting enzyme inhibitor. reduce glom hypertension.
antihypertensive

*might actually cause renal necrosis if you decrease blood flow too much.
Term
CCB
Definition
Calcium channel blockers.

antihypertensive.
decrease activation of calcium regulated catabolism and lysosomal activity. minimize renal damage.
The drug of choice for cats.
ex: Amlodipine.
Term
Prazosin
Definition
a1 receptor antagonist. for hypertension
Term
Should I give propranolol to an asthmatic cat?
Definition
NO! B blocker for hypertension will lead to bronchoconstriction.
Term
Hydralazine
Definition
arteriolor dilator. good in hypertensive crisis.
Term
Sodium nitroprusside
Definition
releases NO good for hypertensive crisis.
Term
lasix
Definition
furosimide a loop diuretic.
Ca and K wasting.
pulmonary edema, hypercalcemia, cerebral edema, acute kidney injury.

*patients with reactions to sulfonamide abx should not get furosemide.
Term
But I want a diuretic that keeps all my K. and I want it to be a weak diuretic
Definition
K sparing.
1.Spironolactone
2.Triamterene
3.Amiloride.
Term
True or false:
Thiazides increase PU/PD associated with nephrogenic DI.
Definition
False! they decrease PU/PD by decreasing plasma volume and decreased GRF. More time for the proximal tubule to reabs NaCl
Term
I want to prevent calcium oxalate crystals in a predisposed dog.
Definition
Thiazide diuretic.
Ca saving
K wasting
also decrease uric acid excretion.
Term
Chlorthiazide.
Definition
A thiazide diuretic. good for congestive heart failure and CaOx crystals.
Term
Acetazolamide
Definition
A CA inhibitor.
Reduces reabs of NaCl because less H around for the switcharoo.

Usually used for glaucoma.
Mountain sickness
used with acute tumor lysis to decrease K.
Term
Theophylline
Definition
filtration diuretic. weak. increases renal blood flow and inhibits reabs NaCl.
Term
imipramine
Definition
stress incontinence.

anitdepressant....
decreases NE uptake=increase sphincter tone.
Term
1. Proprantholine bromind
2. Flavoxate HCl
3. Ocybutinin
Definition
For detrusor hyperspasticity!
anticholinergic

ps flavoxates brand name: Urispas :)
Term
Drug of choice for detrussor atony
Definition
bethanechol
Term
phenoxybenzamine
Definition
for hyper tension and urethral hyperspaz.
a-adrenergic antagonist.
Term
prazosin
Definition
hypertension and urethral spaz.
a-antagonist but also modulates somatic input.

like Terazosin
Term
dantrolene and baclofen
Definition
sk musc relax.
good for urethral spaz.
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