Proficiency testing results for amino acid analysis (unit, µmol/L)
| Year | Trial | Specimen no. | Intended response | Reported respons | No. | Reported components | No. | Median | Minimum | Maximum |
|---|---|---|---|---|---|---|---|---|---|---|
| 2018 | 1st | CMA-18-01 | Argininosuccinic aciduria | Argininosuccinic aciduria | 6 | Alanine | 6 | 1,226 | 1,059 | 1,340 |
| Citrulline | 6 | 437 | 314 | 484 | ||||||
| Glutamine | 6 | 1,860 | 1,219 | 2,096 | ||||||
| CMA-18-02 | Hepatic disease | Hepatic disease | 6 | Methionine | 6 | 317 | 173 | 398 | ||
| Ornithine | 6 | 352 | 299 | 422 | ||||||
| Phenylalanine | 6 | 628 | 511 | 689 | ||||||
| Tyrosine | 6 | 374 | 317 | 414 | ||||||
| 2nd | CMA-18-03 | Phenylketonuria | Hyperphenylalaninemia/phenylketonuria | 5 | Phenylalanine | 5 | 899.9 | 622.5 | 1008 | |
| CMA-18-04 | Homocystinuria | Homocystinuria | 4 | Homocystine | 5 | 52.3 | 42 | 125.2 | ||
| Homocystinuria/methylmalonic aciduria | 1 | Methionine | 5 | 351.6 | 279 | 420.1 | ||||
| 2019 | 1st | CMA-19-01 | Citrullinemia | Citrullinemia | 5 | Citrulline | 5 | 429 | 370.5 | 529 |
| CMA-19-02 | Maple syrup urine disease | Maple syrup urine disease | 5 | Allo-isoleucine | 4 | 4,882 | 3,515 | 7,344 | ||
| Isoleucine | 5 | 1,418.1 | 809 | 5,677 | ||||||
| Leucine | 5 | 790.1 | 626.7 | 877 | ||||||
| Valine | 5 | 991 | 706.5 | 1,110 | ||||||
| 2nd | CMA-19-03 | Tyrosinemia type I | Tyrosinemia type I | 5 | Methionine | 5 | 331 | 198 | 411 | |
| CMA-19-04 | No abnormality | No abnormality | 5 |