“…Most mean nitrogen intake-output balance studies conducted on patients during CRRT, including our results, are negative, with values ranging from Ϫ71 to Ϫ286 mmol/d (Ϫ2 to Ϫ8 g/d). 120,122,123,132,133 This is comparable to studies conducted on critically ill patients who have adequate renal function. 110,111,117,134 -136 Previously, we demonstrated that positive nitrogen balance during CRRT was not a requirement for survival in patients with traumatic injuries.…”