Final answer:
In a child suspected of having autism spectrum disorder (ASD), the inability to maintain eye contact is a crucial sign. This difficulty in social interaction, along with other behaviors like repetitive motor actions and adherence to routines, is indicative of ASD, which presents with a wide spectrum of symptoms.
Step-by-step explanation:
When evaluating a child for suspicion of autism spectrum disorder (ASD), the inability to maintain eye contact is a significant finding that suggests autism. Impaired social interaction includes the difficulty to read social cues and problems with feeling empathy. Along with these social challenges, children with autism may exhibit other behaviors, such as repetitive motor behaviors, strict adherence to certain rituals, intense preoccupation with specific subjects, and use of language in unusual ways.
It's important to understand that ASD is a spectrum disorder, meaning that symptoms and abilities can vary widely from one individual to another. Some individuals with autism may have additional neurological challenges such as epilepsy, while others may have intellectual disabilities or exceptional language skills. Therefore, when evaluating a child for autism, a range of symptoms and behaviors needs to be considered.