The nurse knows that the school-age child is in Erikson's stage of industry versus inferiority. Which best exemplifies a school-ager working toward accomplishing this developmental task?

A. Eruption of the last four molars: This characteristic typically occurs during adolescence but may vary individually. However, it is not universal among all teenagers and does not apply to both genders equally.

B. Increased shoulder, chest, and hip widths: During adolescence, both boys and girls experience growth spurts, leading to increased shoulder, chest, and hip widths as part of their overall physical development.

C. Decreased respiratory rates of 15 to 20 breaths per minutE. Respiratory rates in teenagers generally remain within the normal adult range, typically between 12 and 20 breaths per minute. There is no consistent decrease in respiratory rates during adolescence.

D. Fully functioning sweat and sebaceous glands: Sweat and sebaceous glands are typically fully developed and functional by adolescence. This characteristic is not specific to teenagers but applies to individuals of all ages once these glands have matured.

A. Myelination of the brain and spinal cord is a continuous process that begins during fetal development and continues through childhood and adolescence. While significant myelination

occurs during infancy and toddlerhood, it is not complete by 24 months. However, substantial progress in myelination does occur during the toddler years, contributing to the development of motor and cognitive skills.

B. Alveoli reach adult numbers by 3 years of age. This statement is incorrect. Alveoli continue to develop and increase in number after birth, reaching adult numbers around adolescence, not by 3 years of age.

C. Urine output in a toddler typically averages approximately 30 mL/hour. This statement is incorrect. Toddlers typically have higher urine output rates than adults due to their smaller

bladder capacity and higher metabolic rate. The average urine output for a toddler is around 1-2 mL/kg/hour, which varies depending on factors such as hydration status and activity level.

D. Toddlers typically have strong abdominal muscles by the age of 2. This statement is incorrect. While toddlers may develop some abdominal muscle strength through activities such as walking and climbing, their muscle tone and strength are still developing and may not be as strong as in older children or adults.