Up until five months of age, Maureen was developing normally. At age two, her parents noticed that her head seemed small compared to other two-year-olds and the quality of her interaction with them deteriorated. Maureen was most likely diagnosed with
A) Rett syndrome.
B) childhood disintegrative disorder.
C) Asperger's disorder.
D) autism spectrum disorder.

Question

Quizplus · Accepted Answer

Rett syndrome is characterized by normal early growth and development followed by a slowing of development, loss of purposeful use of the hands, distinctive hand movements, slowed brain and head growth, problems with walking, seizures, and intellectual disability. The symptoms described, including the normal development up to five months, followed by a deterioration in interaction and a smaller head size (microcephaly), are indicative of Rett syndrome.

Up Until Five Months of Age, Maureen Was Developing Normally