Based on the provided sources, the following is a summary focusing on the adolescent age group (11 to 20 years), covering their developmental milestones, vital signs, and immunization schedule.

Adolescent Growth and Development

Adolescence is defined as the transition from childhood to adulthood, spanning ages 11 to 20. This period is characterized by rapid physical, cognitive, and psychosocial changes.

• Physiologic Changes: Puberty is driven by the hypothalamus releasing GnRH, stimulating the pituitary to release FSH and LH, which triggers gonadal response (estrogen in females, testosterone in males). Females generally enter puberty (ages 9–10) and reach physical maturity before males. A distinct growth spurt occurs, with females gaining 15–55 lbs and males gaining 15–65 lbs during this period ...