RT Book, Section
A1 Parizianu, Constantin
A1 Kohli-Seth, Roopa
A2 Atchabahian, Arthur
A2 Gupta, Ruchir
SR Print(0)
ID 57263624
T1 Chapter 203. ICU Ventilator Modes
T2 The Anesthesia Guide
YR 2013
FD 2013
PB The McGraw-Hill Companies
PP New York, NY
SN 978-0-07-176049-2
LK accessanesthesiology.mhmedical.com/content.aspx?aid=57263624
RD 2024/04/19
AB Table  Graphic  Jump  Location|Download  (.pdf)|PrintTidal  volume  (VT)Initially  choose  8–10  mL/kg  IBWAvoid  high  volumes  to  prevent  barotrauma↑VT  =  ↑  MV  and  ↓  Paco2  and  ↑  pHIf  ARDS/ALI  is  present,  use  6  mL/kg  IBWRespiratory  rate  (RR)12–14  breaths/min  usually  adequate↑  RR  =  ↑  MV  and  ↓  Paco2  and  ↑  pH,  but  beyond  a  certain  point,  dead  space  ventilation  and  risk  of  breath  stackingFraction  of  inspired  oxygen  (FiO2)Start  at  1.0  and  taper  down  quickly  to  achieve  a  goal  Pao2  of  >60  mm  Hg  and  O2  saturation  of  >90%Inspiratory  flowUsually  40–60  L/min↑  Flow  =  ↓  inspiratory  time  and  ↑  expiratory  time,  thus  ↓  I:E  ratioUseful  in  obstructive  airways  disease  to  decrease  auto-PEEP,  be  careful  though  about  the  increase  in  peak  airway  pressurePositive  end-expiratory  pressure  (PEEP)Typically  set  at  5  cm  H2O↑  PEEP  (up  to  20–24  cm  H2O)  =  ↑  oxygenation  in  ALI/ARDSMay  lead  to  decreased  venous  return/hypotension,  increased  plateau  pressure/barotrauma,  may  increase  ICP  (in  theory)  IBW,  ideal  body  weight;  ARDS,  acute  respiratory  distress  syndrome;  ALI,  acute  lung  injury;  I:E  ratio,  inspiratory  to  expiratory  ratio;  ICP,  intracranial  pressure.