A nurse is assessing a 6-month-old infant. The nurse recognizes the posterior fontanel usually closes at which age?
a. 6 to 8 weeks
b. 10 to 12 weeks
c. 4 to 6 months
d. 8 to 10 months
ANS: A
The bones surrounding the posterior fontanel fuse and close by age 6 to 8 weeks; 10 to 12 weeks, 4 to 6 months, and 8 to 10 months are too late. The posterior fontanel is usually closed by age 8 weeks.
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What will be an ideal response?