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NURS 223 Chapter 43 Exam Questions and Answers with Verified Solutions | Latest Updated 2026

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NURS 223 Chapter 43 Exam Questions and Answers with Verified Solutions | Latest Updated 2026

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NURS 223 Chapter 43 Exam Questions and
Answers with Verified Solutions | Latest
Updated 2026



What are circadian rhythms? The body's internal 24-hour biological
clock that
regulates sleep-wake patterns.


What factors affect circadian Light, temperature, social activities, and
rhythms? work
routines.


What can sleep-wake cycle Decreased appetite, weight loss, anxiety,
disruption cause? restlessness, irritability, and impaired
judgment.


What is rest? A physical, mental, or emotional state of
decreased muscle and cognitive activity
that
relieves stress and conserves energy.


What is sleep? A state of altered consciousness that
restores
energy and supports physical and
cognitive
restoration.


What percentage of the night is About 75%.
spent in NREM sleep?

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