MrsHughes Has Brought Her 2-Month-Old Son in for His First

question 20

Multiple Choice

Mrs.Hughes has brought her 2-month-old son in for his first vaccination.She asks the nurse why his sleep patterns are so sporadic.How would the nurse respond?

• A)Once REM sleep develops,by 6-9 months of age,an infant's sleep pattern will regularize.
• B)Sleep is partially regulated by circadian rhythms that are not developed until 3-6 months of age.
• C)NREM sleep is not fully developed in infants,so they do not fall into the deepest stages (III and IV).
• D)The activating system for melatonin release is not mature until 6-8 months of age.

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