What do you suggest if my new nephew has downs w/missing pages of chromosome number two?

Many things: I usually have them see cardiology & genetics. They need to be hooked up with an early intervention program. They need to have CBC and thyroid studies followed yearly (increased chance of thyroid disease & leukemia). He will need X-rays of his neck when he is older. Vision screens. Forgot ... lots of love. Kids with Down's are lovable awesome kids.