There are many causes of thrombho cytopenia(low platelets) in new born babies
If your child is sick it may be from infection,and complications of infection like DIC,etc.
If your child. is well looking it may be from a condition called alloimmune thrombocytopenia
These are medical terms- you can discuss with the treating doctor as to what is the cause of low platelet count
-because what will happen to the child depends on what caused the problemof low blood platelets
I am sorry the platelet counts are not uploaded correctly in your question.