Final answer:
The nurse caring for a 9-year-old boy with achondroplasia would likely expect to find characteristics such as trident hand and persistent otitis media due to the distinct physical attributes associated with the disorder.
Step-by-step explanation:
Achondroplasia is a genetic disorder that is a common form of dwarfism and is characterized by certain physical attributes. In individuals with achondroplasia, the nurse would expect to find features that are typical of this condition, such as a trident hand and frequent occurrences of otitis media or persistent ear infections. Trident hand refers to the separation between the middle and ring fingers that is often seen in achondroplasia, causing the hand to appear to have a trident shape. Persistent otitis media is due to the anatomical differences in the structure of the middle ear and Eustachian tubes in people with achondroplasia which can lead to recurrent infections.