You might need to write a different request letter to ask someone who you should write to. In this case, still follow these steps for writing a request letter. Learn the format for a business letter. Your request letter should use the proper business letter format, as it is likely a formal request.
The Epworth Sleepiness Scale (ESS) is a scale intended to measure daytime sleepiness that is measured by use of a very short questionnaire. This can be helpful in diagnosing sleep disorders. It was introduced in 1991 by Dr Murray Johns of Epworth Hospital in Melbourne, Australia.
If you have a sleep study such as a polysomnogram or even home sleep testing, you may receive a report from your doctor that describes the severity of your sleep apnea according to the apnea-hypopnea index (AHI), but what is the AHI? Learn what the AHI is and how the measure is used to assess the severity of sleep apnea and your response to therapy. AHI, or the apnea-hypopnea index, is a numerical measure that accounts for the number of pauses in your breathing per hour of sleep. 1  These breathing disturbances are typically associated with either a brief arousal or awakening from sleep or a 3 to 4 percent drop in the blood oxygen levels, called a desaturation.