Domain 3

Adult Sleep Staging and Arousals

Score wake, N1, N2, N3, REM and arousals.

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Reference framework

These are independently written educational questions aligned to the public BRPT blueprint and professional technical references. Always use the current official scoring manual, laboratory policy and clinician orders in practice.

Adult Sleep Staging and Arousals

An epoch shows low-amplitude mixed-frequency EEG, slow rolling eye movements and reduced chin EMG without spindles or K complexes. Which stage is most likely?

An epoch contains a clear sleep spindle in the first half and no arousal. Which stage should be scored?

At least one fifth of an adult epoch consists of high-amplitude slow-wave activity in frontal derivations. Which stage is appropriate?

An epoch shows low-amplitude mixed-frequency EEG, rapid eye movements and very low chin tone. Which stage is most likely?

Reference framework