Calcium is needed by the body to function properly. Calcium can affect your nerves, muscles, digestive tract, kidneys, and the way your heart functions. When the calcium level becomes too high, you may develop unusual symptoms. The calcium level in your blood is normally controlled by hormones, the kidneys, and bone.
Pervasive developmental disorders: Types list. The list of types of Pervasive developmental disorders mentioned in various sources includes: 1  Autism. 2  Asperger syndrome. 3  Childhood disintegrative disorder. 4  Rett's syndrome. 5  Pervasive developmental disorder not otherwise specified (PDDNOS) - also called atypical autism.
You might have heard of pervasive developmental disorders (PDDs) that include delays in how a child typically develops, problems with socializing and communicating, trouble when a routine changes, and repetitive movements and behaviors. But itâs actually not a term that doctors use anymore. PDDs are now called autism spectrum disorder. The name change came in 2013, when the American Psychiatric Association reclassified autistic disorder, Aspergerâs syndrome, childhood disintegrative disorder, and pervasive developmental disorder not otherwise specified (PDD-NOS) as autism spectrum disorders.