A nurse is performing a physical assessment for a school-age child. Which of the following actions should the nurse take?

A. Obtain a vertical height measurement: School-age children are measured standing upright to accurately assess linear growth and compare it with age-appropriate growth charts. Vertical height measurement reflects skeletal growth and is a key component of routine physical assessment in this age group. B. Remove the child's eyeglasses before performing a visual acuity exam: Visual acuity testing should be performed with the child wearing corrective lenses if they are normally used. Removing eyeglasses would not reflect the child’s functional vision and may lead to inaccurate assessment findings. C. Inspect the ear by pulling the pinna down and back: For school-age children and adults, the pinna should be pulled up and back to straighten the ear canal. Pulling the pinna down and back is appropriate only for children under 3 years of age. D. Observe abdominal movement to determine the respiratory rate: Respiratory rate in school-age children is best assessed by observing chest movement. Abdominal observation is more appropriate in infants, who primarily use diaphragmatic breathing.