Diagnosis of Sleep Apnoea

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The diagnostic approach is based around the medical history and a detailed physical examination. A subjective evaluation of daytime sleepiness using the Epworth scale can be of great help in the initial assessment. However, a diagnosis cannot be reached from the medical history alone, so it is always essential to carry out a sleep study.

Polysomnography (sleep study)

The reference test for the diagnosis of SAHS is conventional polysomnography (PSG). The study must be conducted at nighttime and can be used to determine the quality and quantity of sleep, the occurrence and type of apnoea, and the blood oxygen saturation.

Substantiated information by:

Cristina Embid
Josep M. Montserrat Canal
M Concepción Ruiz Sánchez

Published: 16 January 2020
Updated: 16 January 2020

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