As a nurse assessing physical changes in an adolescent during puberty, what is the most appropriate nursing action to address the girl’s concerns and promote normal growth and development ?

The Lagman family brings in their 13-year-old daughter for a routine check-up. Mrs. Lagman expresses concerns about her daughter’s physical changes, particularly related to puberty. The adolescent girl appears shy and uncomfortable discussing the topic but mentions experiencing breast development and menstrual irregularities.