Why Is Rsbi Important?

RSBI is an important predictor of weaning outcome. Serial RSBI and RSBI rate have better predictive value than a single RSBI measurement. However, interpretation of RSBI values must take in consideration certain technical aspects, such as the ventilator settings as well as the patient population.

What is RSBI used for?

The rapid shallow breathing index (RSBI) or Yang Tobin index is a tool that is used in the weaning of mechanical ventilation on intensive care units. The RSBI is defined as the ratio of respiratory frequency to tidal volume (f/VT).

What does RSBI measure?

1. The rapid shallow breathing index (RSBI) is calculated as the ratio of tidal volume (TV) in liters to respiratory rate (RR) in breaths/minute: RSBI = TV/RR. a. With RSBI <105, a weaning attempt can be expected to be successful 78% of the time.