• Temperature ≤ 37.8 °C without antipyretic agents | |
• Heart rate ≤ 100 per minute | |
• Spontaneous respiratory rate ≤ 24 per minute | |
• Systolic blood pressure ≥ 90 mmHg without vasopressor support | |
• Adequate oxygenation on room air (PaO2 ≥ 60 mmHg or pulse oximetry ≥ 90%)a |