Video Library
Sleep/Wakefulness Disorders
Sleep/Wakefulness Disorders ( 40 Questions)
A nurse is providing education to a group of clients about sleep and wakefulness disorders. Which of the following statements accurately defines sleep and its importance for human survival?
Sleep is a state of alertness characterized by cognitive, emotional, and behavioral functions - This definition of sleep is incorrect. Sleep is actually a state of rest and lowered consciousness, marked by reduced cognitive activity, decreased emotional responsiveness, and minimal voluntary muscle movement.
Sleep is a natural state of rest marked by increased muscle movement and heightened awareness of surroundings - This definition is inaccurate. During sleep, muscle movement is typically reduced, and awareness of surroundings is diminished.
Sleep is a condition that causes excessive sleepiness during the day despite adequate nighttime sleep - This definition describes a condition known as hypersomnia or excessive daytime sleepiness, which is not a definition of sleep itself.
Sleep is a prolonged period of unconsciousness that is unnecessary for maintaining well-being - This choice is also incorrect. While sleep involves a loss of conscious awareness, it is not considered unnecessary; in fact, it is crucial for maintaining physical, mental, and emotional well-being.
Choice A rationale:
Sleep is a state of alertness characterized by cognitive, emotional, and behavioral functions - This definition of sleep is incorrect. Sleep is actually a state of rest and lowered consciousness, marked by reduced cognitive activity, decreased emotional responsiveness, and minimal voluntary muscle movement.
Choice B rationale:
Sleep is a natural state of rest marked by increased muscle movement and heightened awareness of surroundings - This definition is inaccurate. During sleep, muscle movement is typically reduced, and awareness of surroundings is diminished.
Choice C rationale:
Sleep is a condition that causes excessive sleepiness during the day despite adequate nighttime sleep - This definition describes a condition known as hypersomnia or excessive daytime sleepiness, which is not a definition of sleep itself.
Choice D rationale:
Sleep is a prolonged period of unconsciousness that is unnecessary for maintaining well-being - This choice is also incorrect. While sleep involves a loss of conscious awareness, it is not considered unnecessary; in fact, it is crucial for maintaining physical, mental, and emotional well-being.