Differential diagnostics of inherited metabolic disorders in newborns.

Objective: The aim: To compose an applicable diagnostic checklist for neonatologists, pediatricians, and general practitioners who refer newborns with certain inherited metabolic diseases (IMDs) suspicion to confirmatory testing laboratories.

Patients And Methods: Materials and methods: Analyzed international and generally, known national clinical guides and recommendations devoted to IMDs diagnostics, treatment and follow up.

Results: Results: Considering integral character of the diagnostic work-up of inborn errors of metabolism, authors of this article composed an applicable checklist that comprises set of data necessary for interpretation the positive results of expanded newborn screening and making decision of appropriate biochemical and molecular tests are required for confirmatory follow-up testing to establish the diagnosis and prescribe pathogenetic therapy.

Conclusion: Conclusions: Properly filled checklist allow metabolic professionals to select appropriate confirmatory tests and interpret results obtained. Early IMDs diagnosis and prompt treatment initiation are crucial for positive outcomes and proved to be an effective tool to decrease levels of child disability and infant mortality.