Fig. 2
From: A comprehensive protocol for ventilator weaning and extubation: a prospective observational study
Details of a comprehensive protocol for ventilator weaning and extubation. SBT, spontaneous breathing trial; PSV, pressure support ventilation; PEEP, positive end-expiratory pressure; RR, respiratory rate; RSBI, rapid shallow breathing index; SaO2, oxygen saturation; HR, heart rate; PERF, post-extubation respiratory failure; APACHE II, Acute Physiology and Chronic Health Evaluation II; NPPV, non-invasive positive pressure ventilation; SpO2, arterial oxygen saturation