Blood | - Sodium, glucose, calcium, magnesium, liver function tests, ammonia, lactate, pyruvate, amino acids
- Arterial blood gas, pH, lactate, pyruvate
- Newborn screen¶
- TORCH titers (toxoplasmosis, other infections, rubella, cytomegalovirus, herpes simplex)
| - Carnitine, acylcarnitine, carbohydrate deficient transferrin
- Biotinidase enzyme activityΔ
- Genetic testing for neonatal-onset epilepsies◊
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Urine | - Urine culture
- Toxicology screen
| - Reducing substances, sulfites, organic acids, guanidinoacetate, creatine, alpha-AASA
|