NBCSN Nationally Certified School Nurse Practice Exam

What is the earliest age at which boys can start developing secondary sexual characteristics in precocious puberty?

1. 7 years

2. 8 years

3. 9 years

4. 10 years

The correct answer is: 9 years

In boys, precocious puberty is defined as the onset of secondary sexual characteristics before the age of 9. The development of secondary sexual characteristics typically includes testicular enlargement, the appearance of pubic hair, and changes in body composition. The correct answer reflects the understanding that boys can start to show these characteristics as early as 9 years old in the context of precocious puberty. This knowledge is crucial for school nurses, who must be able to identify and address issues related to early maturation, which can affect the psychological and emotional well-being of the child. Monitoring physical development and providing appropriate guidance to families is an essential part of a school nurse's role.