The<unk>  <unk>  or Yang Tobin<unk>  is a tool that is used in the weaning of mechanical ventilation on intensive care units. The<unk>  is defined as the ratio of respiratory frequency to tidal volume (f/VT). People on a ventilator who cannot tolerate<unk> endent breathing tend to breathe<unk> ly (high frequency) and shallowly (low tidal volume), and will therefore have a high<unk> . The<unk>  was introduced in 1991 by Karl Yang and Martin J. Tobin.
Rapid shallow breathing index
Peak inspiratory pressure
Shallow breathing
Peak expiratory flow
Respiratory rate
Lung volumes
Heart rate variability
FEV1/FVC ratio