Respiratory Disturbance Index (RDI)

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  • Respiratory Disturbance Index (RDI) is the number of apnoea and hypopnea events per hour during sleep
  • RDI upto 5 per hour is considered normal
  • Based on the the value of RDI, sleep aponea can be classified:
Sleep Apnoea RDI
Mild 5-14
Moderate 15-30
Severe >30

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RDI – Acronym

RDI stands for: Respiratory Disturbance Index

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