Inborn error of metabolism is a rare genetic disorder where the affected baby lacks certain enzymes that maintain normal bodily metabolic function, causing the build-up of toxic substances or the deficiency of critical substances. An affected newborn may appear healthy when carrying an inborn error of metabolism until the baby suddenly gets sick, and suffers irreversible damage or or even life-threatening. Therefore, testing of newborns soon after birth is a crucial step to identify serious or life-threatening conditions to have early detection and prevention in preventing irreversible damage. Test performed to identify 56 life-threatening metabolic disorders using few drop of bloods drawn from your baby..