Final answer:
The nurse should inform the mother that adolescents may require more sleep due to rapid growth associated with physical and developmental changes during this stage of life.
Step-by-step explanation:
The nurse should inform the mother that rapid growth is a condition during adolescence that may require additional sleep. Adolescence is a period characterized by significant physical, emotional, and cognitive changes, including spurts in growth and development. The increased need for sleep is often linked to the energy demands of growing and the natural shift in the circadian rhythm during puberty. Conditions like sleep terrors, elevated zinc levels, and slowed metabolism do not generally require increased sleep, although they may affect sleep quality or patterns.