| CLASS | CHEM | LP7786-9 |
| COMPONENT | Phenylalanine/Tyrosine | LP307525-8 |
| PROPERTY | MRto | LP6834-8 |
| TIME_ASPCT | Pt | LP6960-1 |
| SYSTEM | Ser/Plas | LP7576-4 |
| SCALE_TYP | Qn | LP7753-9 |
| parent | Phenylalanine | Serum or Plasma | Chemistry - non-challenge | LP384229-3 |
| parent | Phenylalanine | Serum or Plasma | Chemistry - non-challenge | LP384229-3 |
| CLASSTYPE | Laboratory class | |
| ORDER_OBS | Observation | |
| UNITSREQUIRED | Y | |
| STATUS | ACTIVE |
| LONG_COMMON_NAME | en-US | Phenylalanine/Tyrosine [Mass Ratio] in Serum or Plasma |
| LONG_COMMON_NAME | en-US | Phenylalanine/Tyrosine [Mass Ratio] in Serum or Plasma |
| SHORTNAME | en-US | Phe/Tyr SerPl |
| ConsumerName | en-US | Phenylalanine/Tyrosine, Blood |
| SHORTNAME | es-AR | fenilalanina/tirosina:relación de concentración de masa:punto en el tiempo:suero/plasma:cuantitativo: |
| SHORTNAME | pt-BR | Phe/Tyr SerPl-mRto |
| LONG_COMMON_NAME | de-DE | Phenylalanin/Tyrosin [Massenverhältnis] in Serum oder Plasma |
| LONG_COMMON_NAME | nl-NL | Fenylalanine/tyrosine [massaverhouding] in serum of plasma |
| LinguisticVariantDisplayName | de-AT | Quotient Phenylalanin/Tyrosin |
| LONG_COMMON_NAME | es-MX | Fenilalanina / Tirosina: Suero o Plasma : Punto temporal: Relación de masa: Cuantitativo: |
LOINC Version: 2.78