Spontaneous Breathing Trial Readiness Score

Assess readiness for spontaneous breathing trial using standardized criteria: adequate oxygenation, hemodynamic stability, absence of vasopressor need, adequate mentation, and passing spontaneous awakening trial.

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Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Assess readiness for spontaneous breathing trial using standardized criteria: adequate oxygenation, hemodynamic stability, absence of vasopressor need, adequate mentation, and passing spontaneous awakening trial

Each component has a specific meaning:

  • Standardized criteria: adequate oxygenation — The standardized criteria: adequate oxygenation recorded for the scenario being assessed.
  • Hemodynamic stability — The hemodynamic stability recorded for the scenario being assessed.
  • Absence of vasopressor need — The absence of vasopressor need recorded for the scenario being assessed.
  • Adequate mentation — The adequate mentation recorded for the scenario being assessed.
  • Passing spontaneous awakening trial — The passing spontaneous awakening trial recorded for the scenario being assessed.

Note: Interpret the sbt readiness score result against the thresholds and context described above.

How to Use

Enter the standardized criteria: adequate oxygenation, hemodynamic stability, absence of vasopressor need, adequate mentation, passing spontaneous awakening trial for the scenario you are assessing. Assess readiness for spontaneous breathing trial using standardized criteria: adequate oxygenation, hemodynamic stability, absence of vasopressor need, adequate mentation, and passing spontaneous awakening trial. Use the sbt readiness score result to inform your calculation.

Frequently Asked Questions