What RSBI predicts successful extubation?

RSBI <105 breaths/min/L predicts successful extubation with sensitivity ~97% and specificity ~64%. RSBI ≥105 suggests weaning failure risk and the need for continued ventilator support assessment.

When should the RSBI be measured?

RSBI is measured during a 1-2 minute T-piece or low-support CPAP trial with the patient awake, cooperative, and hemodynamically stable, after adequate management of the underlying condition.

RSBI — Rapid Shallow Breathing Index for Weaning

Calculate the Rapid Shallow Breathing Index (RSBI = RR / Vt in liters) to predict successful extubation, with RSBI <105 predicting successful weaning from mechanical ventilation.

Use the full interactive calculator below, or

RSBI — Rapid Shallow Breathing Index for Weaning

Frequently Asked Questions

What RSBI predicts successful extubation?

When should the RSBI be measured?