In controlled ventilation - (PGI Nov 09)
|A||Patient is active|
|B||Patient is passive|
|C||Ventilator is active|
|E||Ventilater is passive|
Patient is passive; 'C' i.e., Ventilator is active & 'D' i.e., IPPV [ReI Morgan 4thje p. 1029-1035]
Controlled mechanical ventilation is total support ventilator, i.e. total support is provided by ventilator:- ventilator is active and does all the work; patient is passive. CMV is also known as intermittent positive pressure ventilation (lPPV).