Anaesthesia – MCQ 37 – Weaning from mechanical ventillation

The following modes of ventilation may be used for weaning off patients from mechanical ventilation except:
A. Controlled Mechanical ventilation (CMV)
B. Synchronized intermittent mandatory ventilation (SIMV)
C. Pressure support ventilation (PSV)
D. Assist-control ventilation (ACV)

Correct answer : A. Controlled Mechanical ventilation (CMV)

In CMV, the ventillator delivers the tidal volume. The patient effort is not present. Hence it is not used for weaning off patients from ventillator.