While I agree that every child needs a full evaluation by reputable professionals, Apraxia is not part of the Autistic Spectrum . Children with an Autistic Spectrum Disorder may have apraxia. Children with apraxia may also have Autism. There may be overlapping traits and children with either may benefit from the same or similar therapies such as speech and Occupational Therapist (OT). But medically they are two distinct conditions. Apraxia is neurological condition resulting in difficulty in motor planning with regards to movement which may impact speech, motor skills, etc. The social delays, obsessions, difficulty with transitions, etc that are characteristic of Autism Spectrum Disorders (ASD) are not apraxia, although as mentioned already there may be overlap.
Autistic Spectrum Disorders
http://www.cdc.gov/ncbddd/autism/screening.html
Apraxia
http://www.articlesbase.com/health-articles/what-is-the-difference-between-apraxia-and-autism-413872.html
I know that you parents who have been dealing with these issues understand what can sometimes be subtle differences. But I wanted to clarify for our archives and for newcomers to these disorders.