weaning
The gradual process of reducing mechanical ventilatory support to prepare for extubation.
Full Definition
Weaning is the systematic process of transitioning a mechanically ventilated patient from full ventilatory support to spontaneous breathing. This process involves gradually reducing ventilator assistance through various modes such as pressure support ventilation or T-piece trials. Respiratory therapists assess weaning readiness using specific criteria including adequate oxygenation, hemodynamic stability, and sufficient respiratory drive. Successful weaning culminates in extubation and return to independent breathing.
In Context
- "The weaning protocol was initiated after the patient met all readiness criteria." — Respiratory therapy assessment
- "Failed weaning attempts may indicate underlying respiratory muscle weakness." — Case study report