Figure 5.

Urine volume (Uvol), effective renal plasma flow (ERPF) and glomerular filtration rate (GFR) during airway pressure release ventilation (APRV) with and without spontaneous breathing (SB). During APRV without SB, airway pressure was adjusted to produce equal minute ventilation (V_E; normocapnia) while APRV without spontaneous breathing was administered with equal airway pressure limits (P_aw; permissive hypercapnia). Vertical bars indicate standard deviation.