Adult Sleep Staging and Arousals

Question 1 of 50Basic

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?

Question 2 of 50Basic

A sleep laboratory competency review presents this case: 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?

Question 3 of 50Basic

A second technologist independently reviews the following scenario: 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?

Question 4 of 50Basic

During a quality-assurance conference, the team considers this question: 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?

Question 5 of 50Basic

A board-style practice form presents the following case: 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?

Question 6 of 50Moderate

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

Question 7 of 50Moderate

A sleep laboratory competency review presents this case: An epoch contains a clear sleep spindle in the first half and no arousal. Which stage should be scored?

Question 8 of 50Moderate

A second technologist independently reviews the following scenario: An epoch contains a clear sleep spindle in the first half and no arousal. Which stage should be scored?

Question 9 of 50Moderate

During a quality-assurance conference, the team considers this question: An epoch contains a clear sleep spindle in the first half and no arousal. Which stage should be scored?

Question 10 of 50Moderate

A board-style practice form presents the following case: An epoch contains a clear sleep spindle in the first half and no arousal. Which stage should be scored?

Question 11 of 50Moderate

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

Question 12 of 50Moderate

A sleep laboratory competency review presents this case: At least one fifth of an adult epoch consists of high-amplitude slow-wave activity in frontal derivations. Which stage is appropriate?

Question 13 of 50Moderate

A second technologist independently reviews the following scenario: At least one fifth of an adult epoch consists of high-amplitude slow-wave activity in frontal derivations. Which stage is appropriate?

Question 14 of 50Moderate

During a quality-assurance conference, the team considers this question: At least one fifth of an adult epoch consists of high-amplitude slow-wave activity in frontal derivations. Which stage is appropriate?

Question 15 of 50Moderate

A board-style practice form presents the following case: At least one fifth of an adult epoch consists of high-amplitude slow-wave activity in frontal derivations. Which stage is appropriate?

Question 16 of 50Advanced

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

Question 17 of 50Advanced

A sleep laboratory competency review presents this case: An epoch shows low-amplitude mixed-frequency EEG, rapid eye movements and very low chin tone. Which stage is most likely?

Question 18 of 50Advanced

A second technologist independently reviews the following scenario: An epoch shows low-amplitude mixed-frequency EEG, rapid eye movements and very low chin tone. Which stage is most likely?

Question 19 of 50Advanced

During a quality-assurance conference, the team considers this question: An epoch shows low-amplitude mixed-frequency EEG, rapid eye movements and very low chin tone. Which stage is most likely?

Question 20 of 50Advanced

A board-style practice form presents the following case: An epoch shows low-amplitude mixed-frequency EEG, rapid eye movements and very low chin tone. Which stage is most likely?

Question 21 of 50Moderate

An adult epoch contains alpha rhythm over more than half of the epoch with eyes closed. Which stage is most appropriate?

Question 22 of 50Moderate

A sleep laboratory competency review presents this case: An adult epoch contains alpha rhythm over more than half of the epoch with eyes closed. Which stage is most appropriate?

Question 23 of 50Moderate

A second technologist independently reviews the following scenario: An adult epoch contains alpha rhythm over more than half of the epoch with eyes closed. Which stage is most appropriate?

Question 24 of 50Moderate

During a quality-assurance conference, the team considers this question: An adult epoch contains alpha rhythm over more than half of the epoch with eyes closed. Which stage is most appropriate?

Question 25 of 50Moderate

A board-style practice form presents the following case: An adult epoch contains alpha rhythm over more than half of the epoch with eyes closed. Which stage is most appropriate?

Question 26 of 50Moderate

What minimum duration is required for an EEG arousal in an adult after at least ten seconds of stable sleep?

Question 27 of 50Moderate

A sleep laboratory competency review presents this case: What minimum duration is required for an EEG arousal in an adult after at least ten seconds of stable sleep?

Question 28 of 50Moderate

A second technologist independently reviews the following scenario: What minimum duration is required for an EEG arousal in an adult after at least ten seconds of stable sleep?

Question 29 of 50Moderate

During a quality-assurance conference, the team considers this question: What minimum duration is required for an EEG arousal in an adult after at least ten seconds of stable sleep?

Question 30 of 50Moderate

A board-style practice form presents the following case: What minimum duration is required for an EEG arousal in an adult after at least ten seconds of stable sleep?

Question 31 of 50Moderate

What additional feature is required to score an arousal during REM sleep?

Question 32 of 50Moderate

A sleep laboratory competency review presents this case: What additional feature is required to score an arousal during REM sleep?

Question 33 of 50Moderate

A second technologist independently reviews the following scenario: What additional feature is required to score an arousal during REM sleep?

Question 34 of 50Moderate

During a quality-assurance conference, the team considers this question: What additional feature is required to score an arousal during REM sleep?

Question 35 of 50Moderate

A board-style practice form presents the following case: What additional feature is required to score an arousal during REM sleep?

Question 36 of 50Moderate

After a sleep spindle establishes N2, subsequent epochs lack new spindles but show no transition to wake, N3 or REM. How should they generally be scored?

Question 37 of 50Moderate

A sleep laboratory competency review presents this case: After a sleep spindle establishes N2, subsequent epochs lack new spindles but show no transition to wake, N3 or REM. How should they generally be scored?

Question 38 of 50Moderate

A second technologist independently reviews the following scenario: After a sleep spindle establishes N2, subsequent epochs lack new spindles but show no transition to wake, N3 or REM. How should they generally be scored?

Question 39 of 50Moderate

During a quality-assurance conference, the team considers this question: After a sleep spindle establishes N2, subsequent epochs lack new spindles but show no transition to wake, N3 or REM. How should they generally be scored?

Question 40 of 50Moderate

A board-style practice form presents the following case: After a sleep spindle establishes N2, subsequent epochs lack new spindles but show no transition to wake, N3 or REM. How should they generally be scored?

Question 41 of 50Moderate

Sawtooth waves appear with low chin tone and rapid eye movements. What stage do these findings support?

Question 42 of 50Moderate

A sleep laboratory competency review presents this case: Sawtooth waves appear with low chin tone and rapid eye movements. What stage do these findings support?

Question 43 of 50Moderate

A second technologist independently reviews the following scenario: Sawtooth waves appear with low chin tone and rapid eye movements. What stage do these findings support?

Question 44 of 50Moderate

During a quality-assurance conference, the team considers this question: Sawtooth waves appear with low chin tone and rapid eye movements. What stage do these findings support?

Question 45 of 50Moderate

A board-style practice form presents the following case: Sawtooth waves appear with low chin tone and rapid eye movements. What stage do these findings support?

Question 46 of 50Moderate

A body movement obscures more than half an epoch, and alpha rhythm is present for part of the record. What is the best scoring principle?

Question 47 of 50Moderate

A sleep laboratory competency review presents this case: A body movement obscures more than half an epoch, and alpha rhythm is present for part of the record. What is the best scoring principle?

Question 48 of 50Moderate

A second technologist independently reviews the following scenario: A body movement obscures more than half an epoch, and alpha rhythm is present for part of the record. What is the best scoring principle?

Question 49 of 50Moderate

During a quality-assurance conference, the team considers this question: A body movement obscures more than half an epoch, and alpha rhythm is present for part of the record. What is the best scoring principle?

Question 50 of 50Moderate

A board-style practice form presents the following case: A body movement obscures more than half an epoch, and alpha rhythm is present for part of the record. What is the best scoring principle?