The nurse is assessing a 1-month-old infant at his well-baby checkup. Which assessment findings are appropriate for this age? (Select all that apply.)

A) Absent tonic neck reflex
B) Nonpalpable cervical lymph nodes
C) Fontanels firm and slightly concave
D) Head circumference equal to chest circumference
E) Head circumference less than chest circumference
F) Head circumference greater than chest circumference

An infant's head circumference is larger than the chest circumference. At age 2 years, both measurements are the same. During childhood, the chest circumference grows to exceed the head circumference by 5 to 7 cm. The fontanels should feel firm and slightly concave in the infant, and they should close by age 9 months. The tonic neck reflex is present until between 3 and 4 months of age, and cervical lymph nodes are normally nonpalpable in an infant.