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Two levels of severity are distinguished, the first one is determined by a polysomnography or home sleep apnea test demonstrating 5 or more predominantly obstructive respiratory events per hour of sleep and the higher levels are determined by 15 or more events.
Obstructive sleep apnea is an obstruction in your upper airway that stops normal breathing for a brief time while you're sleeping. In some people, this can occur hundreds of times each night.
Sleep apnea is measured by the apnea-hypopnea index (AHI). An AHI is determined with a sleep study. AHI values for adults are categorized as: [2] [3] Normal: AHI<5; Mild sleep apnea: 5≤AHI<15; Moderate sleep apnea: 15≤AHI<30; Severe sleep apnea: AHI≥30; An episode is when a person hesitates to breathe or stops their breathing altogether.
Polysomnography (PSG) is a multi-parameter type of sleep study [1] and a diagnostic tool in sleep medicine.The test result is called a polysomnogram, also abbreviated PSG.The name is derived from Greek and Latin roots: the Greek πολύς (polus for "many, much", indicating many channels), the Latin somnus ("sleep"), and the Greek γράφειν (graphein, "to write").
Sleep apnea. Problems with your adrenal glands ... They may also recommend an at-home test. There is a phenomenon known as “white coat hypertension” that can occur when your blood pressure is ...
High-resolution pulse oximetry (HRPO) has been developed for in-home sleep apnea screening and testing in patients for whom it is impractical to perform polysomnography. [77] [78] It stores and records both pulse rate and SpO 2 in 1 second intervals and has been shown in one study to help to detect sleep disordered breathing in surgical ...
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