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Spontaneous breathing trial (SBT) failure criteria
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• Variation of 20% of heart rate from pre-SBT value • Variation of 20% of systolic arterial pressure from pre-SBT value • Respiratory rate >35/min • SpO2<88% • Sweating, agitation, conscience alteration • Signs of respiratory distress: increased accessory muscle activity, facial signs of distress, dyspnea • Arterial pH<7.35 and PaCO2>45 mmHg |
PaCO2 Partial pressure of carbon dioxide in arterial blood, SpO2 Peripheral oxygen saturation
