Disorder List
First Step will screen for the following Inborn Errors of Metabolism (also known as Metabolic Disorders) by Tandem Mass Spectrometry and Biochemical Analysis. Newborns are screened from a dried blood spot, ideally collected within 24 to 72 hours of birth.
Disorders Detected by Tandem Mass Spectrometry
Acylcarnitine Profile – Fatty Acid Oxidation Disorders
Acylcarnitine Profile – Organic Acid Disorders
Amino Acid Profile – Amino Acid Disorders
Lysosomal Storage Disorders (LSD)
Other Disorders
- Hyperalimentation
- Medium Chain Triglyceride Oil Administration (MCT)
- Treatment with Benzoate, Pyvalic Acid, or Valproic Acid
- Liver Disease
- Presence of EDTA coagulants in blood specimen
- Carnitine Uptake Deficiency (CUD)
 *There is a lower probability of detection of this disorder during the immediate newborn period.
 
Disorders Detected by Other Technologies