Table 1

 Important history details suggestive of IEM

Features to suggest an IEM
PregnancyMaternal health
HELLP, AFLP
Family historyConsanguinity
Unexplained neonatal or infantile deaths
Three generation pedigree
Past medical history of delayed childUnexplained hypoglycaemia
Encephalopathy
Protein aversion
Self-injurious behaviour
Psychiatric symptoms
Seizure disorder
Type of developmental delayRegression
Hypotonia
Speech delay