The nurse knows that during non-rapid eye movement (NREM) sleep, the following occur: (Select all that apply.)
a. Repair of brain cells
b. Slow rhythmic scanning eye movements
c. Dreaming
d. Cell division in bone marrow
e. Conservation of energy
ANS: A, D, E
During NREM sleep, the phases of sleep in which REM sleep does not occur, growth hormone is released to repair epithelial and brain cells, cell division for skin and bone marrow renewal occurs, and energy is conserved. Slow scanning eye movements do not occur in either REM or NREM. Dreaming occurs in REM.
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