Renal disease Flashcards
2 most common causes of renal disease
diabetes and hypertension
acute kidney injury
sudden loss of kidney function due to non renal condition
(ex. drugs) often reversible/ temporary, but can be permanent.
common cause of AKI
dehydration
BUN:SCR
20:1 or greater
chronic kidney disease (ckd)
progressive loss of kidney function over months or years
ESRD (end stage renal disease)
BAD! total and permanent renal failure
dialysis (or transplant) is needed to perform functions of the kidneys
if the glomerulus is damaged some ___ passes into the urine and this is used along with glomeular filtration rate (GFR) to determine severity of kidney disease also called ____
albumin
nephropathy
thiazides work on the
distal convoluted tubule
afferent =
in
efferent=
out
SGLT2s work at the
proximal tubule
k sparing diuretics work at the
collecting duct
loops work at the
ascending loop of henle
antidiuretic hormone (ADH) is also called
vasopressin
loops inhibit the ___ pump
na-k pump
sodium potassium pump
loops lose ___
calcium
so calcium is decreased
can lead to decreased bone density if used long term
what pump do thiazides inhibit
na-cl
sodium chloride pump
thiazides increase ___
calcium and have a protective effect on bones overtime
spironolactone and epleronone increase
potassium
must know! select drugs that can cause kidney disease
aminoglycosides amphotericin b cisplatin cyclosporine/tacrolimus loops NSAIDS polymyxins radiographic contrast dye vancomycin
for crcl use
actual body weight if less than IBW
IBW if normal weight by BMI
adjusted body weight if overweight by BMI
BUN is
blood urea nitrogen and measures the amount of nitrogen in the blood that comes from urea
two common lab markers for kidney function
increased BUN- but can also be a sign of dehydration
increased SCr
creatinine is a waste product of ___ metabolism
muscle
normal range for SCr
0.6-1.3
GFR is calculated using which two equations
MDRD- modification of diet in renal disease
CKD-EPI- chronic kidney disease epidemiology collaboration
____ is the primary protein that is measured in the urine to assess kidney diease
albumin
___ is sometimes referred to as proteinuria
albuminuria
aces and arbs increase what electrolyte
potassium
KDIGO
kidney disease improving global outcomes
what two things are measured to determine the degree of renal impairment
what are the levels that indicate a patient has ckd and requires specific treatments
GFR and albumin (ACR or AER)
GFR <60
Albuminuria (ACR or AER) 30 or greater
it’s important to control what two things in CKD for progression of disease
blood pressure
blood glucose
when starting tx with an ace or arb the baseline scr can increase by up to ___. this is expected and treatment should not be stopped. if scr increases by greater than ___ tx should be dc and patient will be referred to a nephrologist.
30%
30%
use an __ or __ if albuminuria is present acr or aer 30 or greater
ace or arb
basic principle of med dosing with impaired renal fx
dose adj. may be necessary when crcl is <60
when crcl is 30 or less additional adj. may be required or may be CI
renal fx
120 (normal)
60 (1/2 normal) dose adjust
30 (1/4 normal) CI/dose adjust