| CLASS | CHAL | LP7784-4 | 
| COMPONENT | Thyroxine.free^3H post XXX challenge | LP307169-5 | 
| PROPERTY | MCnc | LP6827-2 | 
| TIME_ASPCT | Pt | LP6960-1 | 
| SYSTEM | Ser/Plas | LP7576-4 | 
| SCALE_TYP | Qn | LP7753-9 | 
| parent | Thyroxine free | Serum or Plasma | Chemistry - challenge | LP387147-4 | 
| CLASSTYPE | Laboratory class | |
| ORDER_OBS | Observation | |
| EXAMPLE_UNITS | pg/dL | |
| EXAMPLE_UCUM_UNITS | pg/dL | |
| UNITSREQUIRED | N | |
| STATUS | ACTIVE | 
| LONG_COMMON_NAME | en-US | Thyroxine (T4) free [Mass/volume] in Serum or Plasma --3 hours post XXX challenge | 
| LONG_COMMON_NAME | en-US | Thyroxine (T4) free [Mass/volume] in Serum or Plasma --3 hours post XXX challenge | 
| SHORTNAME | en-US | T4 Free 3h p chal SerPl-mCnc | 
| ConsumerName | en-US | Free T4 3 hr after challenge, Blood | 
| LONG_COMMON_NAME | nl-NL | Thyroxine.vrij^180 min na XXX belasting [massa/volume] in serum of plasma | 
| LONG_COMMON_NAME | es-MX | Thyroxine.libre : Suero o Plasma : Punto temporal: Concentración de masa: Cuantitativo: | 
LOINC Version: 2.78