The student nurse notices that the newborns sleep peacefully in the nursery, although the environment is noisy and well lit. The nursing instructor explains that this newborn behavior is:
1. Habituation.
2. Orientation.
3. Self-quieting.
4. Due to sleep-alert states.
1
Rationale:
1. Habituation is the newborn's ability to process and respond to visual and auditory stimulation. The capacity to ignore repetitious disturbing stimuli is a newborn defense mechanism readily apparent in the noisy, well-lit nursery.
2. Orientation is the newborn's ability to be alert to, follow, and fixate on complex visual stimuli that are appealing and attractive.
3. Self-quieting ability is the newborn's ability to quiet and comfort herself by sucking on her fist.
4. Sleep-alert state is not responsible for this behavior.
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