The nurse cares for clients in the pediatric clinic. The nurse would be most concerned if which was observed?
A. A 3-month-old infant's back is rounded.
B. A 4-year-old has a blood pressure of 90/60.
C. A 5-year-old has a pulse of 88.
D. The hem of the skirt on a 10-year-old is longer on one side than the other.