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.
Autism can normally be diagnosed in children at around the age of two. In many cases, professional health workers may spot the signs of autism during normal childhood health checks, and this may lead to the child being formally diagnosed.