Its not true that every newborn baby nedds medications. Term babies with normal birth weight needs only mothers milk for first 6 months and nothing else.

Now newborn screeing is available in most of the cities. It's very simple. What one need is two drops of blood on a filter paper supplied by the lab. Most of the labs are doing atleast 6 parameters like. Hypothyroidism, G6PD deficiency, Phenylketoneurea, Congenital hypoaldosteronisim etc