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Table 1 Variables that suggest readiness for spontaneous breathing trials

From: Clinical review: Liberation from mechanical ventilation

Resolution of acute phase of disease

Intact airway reflexes

Cardiovascular stability (no need for continuous vasopressors)

Afebrile

PaO2/FiO2 ≥ 150 mmHg

PEEP ≥ 5 cmH2O

  1. FiO2, fraction of inspired oxygen; PaO2, partial pressure of arterial oxygen; PEEP, positive end expiratory pressure.
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Critical Care

ISSN: 1364-8535