CKD (Selby) Flashcards
<3mo with <60 GFR
is AKI
CKD definition
either a marker of kidney damage (one of more) or decreased GFR for >3 months
markers of kidney damage
albuminuria
urine sediment abnormalities
electrolyte/other abnormalities due to tubular disorder
abnormalities detected by histology
structural abnormalities detected by imaging
Hx of transplant
CKD as defined by GFR
<60 mL/min for >3 months
CKD stage 1
> 90
normal or high
CKD stage 2
60-89
mild decrease
CKD stage 3a
45-59
mild to moderate decrease
CKD stage 3b
30-44
moderate to severe decrease
CKD stage 4
15-29
severe decrease
CKD stage 5
<15
kidney failure/ESRD
in absence of evidence of kidney damage stage 1 or 2
is NOT enough to fulfill criteria for CKD
what causes CKD the most
diabetes
what is the second most common cause of CKD
HTN
what is the third most common cause of CKD
glomerulonephritis
diabetes and HTN together make up what percent of CKD
64%
clinical presentation of CKD
is dependent on severity
many patients are asymptomatic and are found from routine testing
signs and symptoms of CKD
Edema HTN oliguria Foamy urine Uremia Pericardial friction rub asterixis Uremic frost
what is asterixis
tremor of the hand while arm is extended
Serum creatinine
poor marker of kidney function
eGFR
estimated GFR based on a few different formulas and is not accurate in setting of rapidly changing creatinine
measured GFR
most accurate method but only performed in some institutions
creatinine clearance
tends to overestimate GFR
proteinuria
urine albumin to creatinine ration or urine protein to creatinine ratio
diagnosis of CKD
serum creatinine GFR Creatinine clearance Proteinuria Urinalysis with microscopy Renal Biopsy