fˈɜːðɚ tˈɛstɪŋ ɪŋklˈuːdz: əbzˈɜːvɪŋ hˈɪstɪdˌiːn æz wˈɛl æz ɪmˌɪdɐzˌoʊlpɪɹˈuːvɪk ˈæsɪd mətˈæbəlˌaɪts ɪnðə jˈʊɹɹɪn.
Further testing includes: observing histidine as well as imidazolepyruvic acid metabolites in the urine.