Sequential measurements of physiologic and biochemical variables where made at baseline (BL) and after defined times (in minutes) after return of spontaneous circulation (e.g. 5 = 5 min after ROSC). Over a total time period of 60 minutes during ICU phase, Nitrite (red circles, n=10) and placebo (green circles, n=9) treated animals showed no significant difference in (A) heart rate, (B) blood pressure, (C) arterial pH, (D) lactic acid, (E) paO2 and (F) paCO2. Data are shown as mean (± standard error). For better visualization, error bars are directed only in one direction, above for placebo (green) and below for Nitrite (red).