The ABO test shows that people have one of four blood types: A, B, AB, or O. If your red blood cells have: 1  The A antigen, you have type A blood. 2  The liquid portion of your blood (plasma) has antibodies that attack type B blood.
Autism can be detected at age 1 year in some (but not all) toddlers Results of the Pierce study (2011) indicated that it is possible to detect some toddlers showing early signs autism and other delays at 12 months using a simple, broad band screening tool (i.e., the CSBS DP IT Checklist) that takes only 5 minutes for a caregiver to complete.
In older children and adults two autism specific screening tools are the SRS (Social Responsiveness Scale) and the SCQ (Social Communication Questionnaire). The gold standard research tools used to help make an autism spectrum disorder diagnosis are the ADOS (Autism Diagnostic Observation Schedule) and the ADI (Autism Diagnostic Inventory). These tools along with clinician judgment are used to make an autism diagnosis.