A patient may require mechanical ventilation if he or she is receiving an end of life care (Keene, 2011). In this case, mechanical ventilation acts as an assistive treatment for such patients. The process of mechanical ventilation uses a machine known a ventilator to provide a patient’s oxygenation as well as ventilator demands. The use of ventilators is common in situations where a patient has undergone surgery, drug overdose or is experiencing an acute illness. In these conditions, a ventilator plays a pivotal role in providing a patient’s ventilation requirements until he or she is able to maintain his or her own ventilation again. However, in some situations, a patient may require a ventilator to survive long-term and would die if there were withdrawal of such a ventilator.