Lesson 4 Sleep PSG Instr., PSG technique Questions and Answers 2024

the single most important laboratory technique used in the diagnosis and treatment of sleep disorders, especially those associated with excessive daytime somnolence. Polysomnographic (PSG) study The term PSG was proposed in ______ 1974 stage of sleep in which the most severe apneic episodes are noted REM sleep required to sufficiently record all stages of sleep including REM sleep all-night PSG in REM sleep the maximum __________ desaturation occurs. oxygen during CPAP titration, it is essential both NREM and REM sleep are recorded to adequately determine what? the optimal level of pressure Normally, during REM sleep, a _______ CPAP pressure is required to resolve the obstructive events as compared to the pressure required to resolve snoring and obstructive events in NREM sleep. higher the amount of time that appears on each page of the recording. epoch length For analog systems, the paper speed of the recording instrument establishes what? the epoch length