| 3-OH-PA | 3-Hydroxypropionic acid |
| C2 | Acetyl carnitine |
| C3 | Propionyl carnitine |
| C3/C2 | Propionyl carnitine-acetyl carnitine ratio |
| Cbl | Cobalamin |
| CBS | Cystathionine beta-synthase |
| DBS | Dried blood spot |
| Hcy | Total homocysteine |
| IMD | Inherited metabolic disease |
| MCA | Methylcitrate |
| Met | Methionine |
| Met/Phe | Methionine-phenylalanine ratio |
| MMA | Methylmalonic acid |
| MS/MS | Tandem mass spectrometry |
| MTHFR | Methylenetetrahydrofolate reductase |
| MUT | Methylmalonyl-CoA mutase |
| NBS | Newborn screening |
| NGS2025 | Pilot panel “Newborn screening 2020/2025” |
| Phe | Phenylalanine |
| UKHD | Heidelberg University Hospital |