kənfˈɜːmətˌoːɹi tˈɛstɪŋ ɪŋklˈuːdz plˈæzmə ænd jˈʊɹɹɪn ɐnˈæləsˌɪs tʊ aɪdˈɛntᵻfˌaɪ ðə kˈɑːɹnɪtˌiːn ænd ɡlˈaɪsiːn kˈɑːndʒuːɡˌeɪts ʌv tˈuːmˈɛθəlbjˌuːɾɪɹˌɪlkˈoʊ ˈeɪ.
Confirmatory testing includes plasma and urine analysis to identify the carnitine and glycine conjugates of 2-methylbutyryl-CoA.