A client had excessive blood loss and prolonged hypotension during surgery. His postoperative urine output is sharply decreased, and his blood urea nitrogen (BUN) is elevated. The most likely cause for the change is acute:
A) Prerenal inflammation
B) Bladder outlet obstruction
C) Tubular necrosis
D) Intrarenal nephrotoxicity
Ans: C
Feedback:
Ischemic acute tubular necrosis (ATN) occurs most frequently in persons who have major surgery with prolonged renal hypoperfusion—this directly damages the tubular epithelial cells with acute suppression of renal function. Nephrotoxic ATN is caused by toxic agents or drugs. Prerenal vasoconstriction is associated with acute-onset loss of renal output. Bladder (postrenal) obstruction would not affect the BUN, since it rarely causes renal failure.
You might also like to view...
In order to make better use of your time, it is usually suggested that you multitask
a. True b. False
In elementary physical education settings, health-related physical fitness testing is recommended for grades ________
Fill in the blank(s) with correct word
Male and female young adults in committed relationships report greater sexual enjoyment than those engaging in hookups or casual sex.?
Indicate whether the statement is true or false
A pulse pressure over ________ points and under ________ points is considered abnormal
A) 40, 20 B) 40, 30 C) 50, 30 D) 50, 20