Table 1.

Acylcarnitine concentrations in dried blood spots from our patient. The cutoff for the routine screening method with butylation is 0.5 μmol/L. nd – not detected

Sample number	Day after birth	C5 carnitines (butylated) [μmol/l]	Pivaloylcarnitine [μmol/l]	2-Methylbutyrylcarnitine [μmol/l]	Isovalerylcarnitine [μmol/L]	Valerylcarnitine [μmol/L]
1	3	4.12	6.02	nd	0.05	nd
2	5	2.64	3.55	0.02	0.04	nd
3	5	-	3.69	nd	0.04	nd
4	5	-	3.74	0.02	0.04	nd
5	9	1.00	1.20	0.02	0.05	nd
6	19	0.32	0.29	0.04	0.08	nd
7	41	0.18	0.04	0.04	0.08	nd
8	55	0.13	0.02	0.05	0.08	nd
9	126	0.08	0.01	0.03	0.05	nd