Research Article

The Effect of Bicarbonate Administration via Continuous Venovenous Hemofiltration on Acid-Base Parameters in Ventilated Patients

Table 5

Ventilator settings.

Hour 0Hour 8Hour 16Hour 24Hour 36Hour 48Hour 60Hour 72Hour 96

Mode
 AC or PC17 (89.5%)16 (84.2)15 (78.9)15 (78.9)14 (73.7)12 (70.6)12 (70.6)10 (58.8)7 (41.2)
 PS2 (10.5%)2 (10.5)3 (15.8)3 (15.8)4 (21.0)4 (21.0)4 (21.0)6 (35.3)8 (47.1)
 Oscillatora01 (5.3)1 (5.3)1 (5.3)1 (5.3)1 (5.3)1 (5.3)1 (5.9)1 (5.9)
PEEP (cm H2O)8.0 ± 3.59.0 ± 6.09.0 ± 6.09.3 ± 6.010.0 ± 7.410.2 ± 7.710.7 ± 7.910.1 ± 7.79.1 ± 7.3
Achieved tidal volume (mL)520 ± 128519 ± 122518 ± 130520 ± 133519 ± 122506.1 ± 134.1503.5 ± 156.0495.4 ± 142.4540.3 ± 162.5
Ventilator RR (/minute)22.0 ± 7.523.0 ± 8.323.0 ± 8.821.9 ± 8.222.2 ± 7.922.9 ± 7.622.3 ± 8.022.5 ± 8.120.7 ± 8.9
Subject RR (/minute)23.5 ± 8.823.5 ± 8.823.5 ± 8.622.7 ± 8.423.5 ± 7.624.8 ± 8.323.8 ± 9.124.3 ± 7.922.8 ± 9.6
FIO2 (%)62.4 ± 24.558.7 ± 20.553.9 ± 20.053.4 ± 21.755.5 ± 23.154.2 ± 24.656.5 ± 24.553.8 ± 22.153.8 ± 22.1

High frequency oscillator ventilator.
AC: assist control; PC: pressure control; PS: pressure support; PEEP: positive end expiratory pressure; RR: respiratory rate; FIO2: fraction of inspired oxygen.