Another index that is used to measure sleep apnea is the respiratory disturbance index ( RDI ).
2.
The opponents and supporters of chloroform were mainly at odds with the question of whether the complications were solely due to respiratory disturbance or whether chloroform had a specific effect on the heart.
3.
The respiratory disturbance index is similar to the apnea-hypopnea index; however, it also includes respiratory events that do not technically meet the definitions of apneas or hypopneas, such as a Respiratory Effort Related Arousal ( RERA ), but do disrupt sleep.