| parent | Urea nitrogen | LP14492-0 |
| child | Urea nitrogen [Mass/volume] in Serum or Plasma | 3094-0 |
| child | Urea nitrogen [Mass or Moles/volume] in Serum or Plasma | 35234-4 |
| child | Urea nitrogen [Moles/volume] in Serum or Plasma | 14937-7 |
| child | Urea nitrogen/Creatinine [Mass Ratio] in Serum or Plasma | 3097-3 |
| child | Urea nitrogen [Mass/volume] in Serum or Plasma --1 hour specimen | 93975-1 |
| child | Urea nitrogen [Mass/volume] in Serum or Plasma --2 hour specimen | 12966-8 |
| child | Urea nitrogen [Mass/volume] in Serum or Plasma --70 minute specimen | 12965-0 |
| child | Urea nitrogen [Mass/volume] in Serum or Plasma --post dialysis | 11064-3 |
| child | Urea nitrogen [Mass ratio] in Serum or Plasma--post dialysis/pre dialysis | 49071-4 |
| child | Urea nitrogen [Mass/volume] in Serum or Plasma --pre contrast | 72270-2 |
| child | Urea nitrogen [Mass/volume] in Serum or Plasma --pre dialysis | 11065-0 |
| PartDisplayName | en-US | Urea nitrogen | Serum or Plasma | Chemistry - non-challenge |
LOINC Version: 2.77
FHIR