The T-piece is connected to the client's artificial airway.
For a brief time, the client is taken off the mechanical ventilator. At a fraction of inspired oxygen (FiO2) that is 10% higher than a ventilator setting, additional oxygen is being given through the T-piece in the meantime.
When a patient is intubated but does not need mechanical ventilation, oxygen treatment is administered using T-shaped tubing attached to an endotracheal tube. It offers the patient low-pressure support and high oxygen concentration.
The duration of an SBT should not exceed 2 hours, and preferably, it should be at least 30 minutes, even if no study has demonstrated a clear advantage between PSV and T-piece trials. The extubation will be better tolerated the shorter the SBT duration.
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