Renal Failure Flashcards
What do you call a sudden decrease in kidney function?
Acute Kidney Injury
AKI is characterized with an increase in what in the serum?
creatinine
oliguria is defined as less that how much urine in a day?
less than 400-500mL
AKI results in an inability to maintain what?
acid base, fluid, and electrolyte balance and to excrete nitrogenous wastes.
three categories of AKI
prerenal
intrinsic
postrenal
what type of AKI is a result of kidney hypoperfusion (low blood flow or pressure) leading to decreased GFR?
prenrenal
which type of AKI is from obstructive uropathy?
postrenal
what are some causes of decreased renal perfusion?
hemorrhage
GI losses
Dehydration
Excessive Diuresis
what is a buildup of waste products can sometimes cause nonspecific sx and signs such as N/V, altered sensorium, pericarditis, malaise called?
uremia
laboratory findings for AKI?
BUN
Creatinine (ration of BUN:Creatinine can help determine prerenal, postrenal, or intrinsic
UA: looking for RBC,s casts or WBC’s.
Treatment for prerenal AKI:
depends on the root cause.
achieve euvolemia
restoring perfusion
treatment for postrenal AKI:
bladder catheterization
relieve underlying cause
treatment of intrinsic AKI:
self limited
managed by nephrology