Table 2.

Cause of ARF by random chart review (N = 100)^a

Cause	n
Decreased renal perfusion (including volume contraction, congestive heart failure, hypotension, and cardiac arrest)	76
Medication related	0
Radiocontrast media	6
Postoperative	6
Sepsis	21
Other	6

^aTotal exceeds 100 because some cases had more than one contributing cause.