Which of the following statements about stage N3 sleep is true?

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Prepare for the AASM Sleep Technologist Test. Enhance your knowledge with flashcards and multiple-choice questions, each offering hints and detailed explanations. Get confident for your exam!

Multiple Choice

Which of the following statements about stage N3 sleep is true?

Explanation:
Stage N3 is the deepest non-REM sleep, dominated by slow, high-amplitude delta waves with very little movement. Because eye movements are minimal in this stage, the statement that eye movements are not typically seen is true. Delta activity is present in N3, since the waves themselves are the defining feature, so saying delta activity is absent is incorrect. Spindles are a hallmark of stage N2, not N3, so the claim that spindles are prominent in N3 doesn’t fit. Eye movements are associated with REM sleep, not N3, so the idea that they are typically present in N3 would also be incorrect.

Stage N3 is the deepest non-REM sleep, dominated by slow, high-amplitude delta waves with very little movement. Because eye movements are minimal in this stage, the statement that eye movements are not typically seen is true. Delta activity is present in N3, since the waves themselves are the defining feature, so saying delta activity is absent is incorrect. Spindles are a hallmark of stage N2, not N3, so the claim that spindles are prominent in N3 doesn’t fit. Eye movements are associated with REM sleep, not N3, so the idea that they are typically present in N3 would also be incorrect.

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