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In the context of mechanical ventilation, the term 'weaning' refers specifically to the gradual withdrawal of ventilatory support from the patient. This process is crucial when a patient shows signs of improvement and is able to maintain adequate respiratory function independently. Weaning involves reducing the assistance given by the ventilator, allowing the patient to take on more of the work of breathing.

The weaning process may include various strategies, such as decreasing the level of pressure support or the amount of time the patient spends on the ventilator versus breathing spontaneously. The aim is to prepare the patient for extubation by ensuring that they can maintain stable oxygenation and ventilation without mechanical assistance.

Understanding this process is essential, as it helps clinicians evaluate when a patient is ready to transition away from full ventilatory support, promoting recovery and minimizing potential complications from prolonged mechanical ventilation.