This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anaesthesia
A patient of head injury is intubated and ventilated. The ideal mode of ventilation in him would be: 
Select and explain. 
A. CMV, B. CPAP, C. AMV, D. SIMV
A: CMV
Answer: A: CMV 
Explanation: Ans. a. CMVControlled Mechanical Ventilation (CMV)The ventilator delivers a present number of breathes/min of a preset volume.