The nurse is examining a 10-month-old boy who was born 10 weeks early. Which finding is cause for concern?

A. Areola and papilla separate from the contour of the breast: This is a normal finding in breast development and indicates Tanner stage 4 or higher, which is typical for adolescent girls. It does not necessarily indicate a developmental delay.

B. Absence of first menstrual perioD. Menarche, the first menstrual period, typically occurs between the ages of 9 and 15 in girls. Absence of menarche by the age of 15 or within 3 years after the onset of breast development (thelarche) may indicate a developmental delay or underlying medical condition that should be evaluated by a healthcare provider.

C. Developed breast tissuE. Breast development, indicated by palpable breast tissue, is a normal part of female puberty and typically occurs before menarche. Developed breast tissue alone does not necessarily indicate a developmental delay.

D. Mature distribution and coarseness of pubic hair: Pubic hair development is also a part of female puberty and occurs before or around the time of menarche. While the distribution and coarseness of pubic hair can provide information about pubertal development, the absence of menarche is a more reliable indicator of a potential developmental delay.

A. Poisoning: While poisoning can be a significant concern among adolescents, it is not the

leading cause of death in this age group. Poisoning deaths may occur due to accidental ingestion of toxic substances or intentional overdose, but it is not as common as other causes of death

among adolescents.

B. Drowning: Drowning is a concern, especially during recreational activities such as swimming, but it is not the leading cause of death among adolescents. Proper water safety practices and supervision can help prevent drowning incidents.

C. Unintentional injuries: Unintentional injuries, including motor vehicle accidents, falls, and other accidents, are the leading cause of death among adolescents. Risk-taking behaviors, lack of experience, and peer influence contribute to the high rate of unintentional injuries in this age group.

D. Diseases: While diseases such as cancer, heart disease, and respiratory disorders can affect adolescents, they are not the leading cause of death in this age group. Unintentional injuries,

including those resulting from accidents and trauma, are more common causes of death among adolescents.