Domain 2

Sleep Staging

Recognize wake, N1, N2, N3 and REM features.

4questionsExam mode

Question 1 of 4

Which feature is most characteristic of N2 sleep?

A.Sleep spindle or K complexB.Persistent posterior alphaC.Rapid eye movements with atoniaD.High-amplitude delta in most of the epoch

Question 2 of 4

Which combination best supports REM sleep?

A.High chin tone and no eye movementsB.A K complex with spindleC.Rapid eye movements, low chin tone and compatible mixed-frequency EEGD.Persistent alpha rhythm

Question 3 of 4

An epoch shows low-amplitude mixed-frequency EEG and slow eye movements without N2 markers. Which stage is likely?

A.N1B.N2C.N3D.Wake with posterior alpha

Question 4 of 4

Which finding supports N3 sleep in an adult?

A.A single eye blinkB.A short ECG artifactC.A sufficient amount of qualifying slow-wave activityD.Only low chin tone

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.