Thank you for your query.
If they are providing the tests go forward with it .There is no harm in doing the tests.
These tests diagnose inborn errors of metabolism
and can be done any time.
There is question of mistake or hiding.There is alteration of results if they are not done within 7 days of life.
Don't be worried.Go ahead.
Hope this answers your query.
If you have any other queries kindly direct them to me.
Wishing a speedy recovery.
Have a nice day.