It is generally expressed as the number of events per hour. Discuss your sleep apnea risk test results with your primary care doctor who will likely help you schedule a sleep study. Apnea Hypopnea And Rera Defined Apnea Sleep Apnea Sleep Apnea The morning after a guide to understanding your sleep study. Sleep apnea study results . If you are reading this you ve probably had a sleep study. Request a copy of the doctor s dictated results and the full scored data summary report with condensed graphs from both your sleep evaluation and your titration. Because you underwent an overnight sleep study polysomnogram there is a chance you were. To help you better understand the results of your sleep study we are including this page which has the meanings of different words that are used in your report. Apnea hypopnea index ahi the ahi is the number of apneas or hypopneas recorded during the study per hour of sleep. Which means that you ve spent a night in a polysomnographic laborato...