A nurse is teaching a class on acute renal failure. The nurse relates that acute renal failure as a result of hemolytic-uremic syndrome (HUS) is classified as
a. Intrarenal
b. Prerenal
c. Postrenal
d. Chronic
A
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A Intrarenal acute renal failure is the result of damage to kidney tissue. Possible
causes of intrarenal acute renal failure are HUS, glomerulonephritis, and
pyelonephritis.
B Prerenal acute renal failure is the result of decreased perfusion to the kidney.
Possible causes include dehydration, septic and hemorrhagic shock, and
hypotension.
C Postrenal acute renal failure results from obstruction of urine outflow.
Conditions causing postrenal failure include ureteropelvic obstruction,
ureterovesical obstruction, or neurogenic bladder. Renal failure caused by HUS
is of the acute nature.
D Chronic renal failure is an irreversible loss of kidney function, which occurs over
months or years.
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