LOINC display name : Tryptophan, kynurenin and 3-hydroxykynurenin panel;
LOINC long common name : Tryptophan, kynurenin and 3-hydroxykynurenin panel - Serum or Plasma;
LOINC short name : Tryptophan metabolites Pnl SerPl;
LOINC description : Determination of tryptophan, kynurenin and 3-hydroxykynurenin in serum or plasma for
assessing several pathophysiological conditions, including neuroendocrine tumors,
depression and schizophrenia.[PMID: 19196554];