| parent | Sodium | LP15099-2 |
| child | Fractional excretion of sodium | Urine and Serum or Plasma | Chemistry - non-challenge | LP386657-3 |
| STATUS | ACTIVE |
| PartDisplayName | en-US | Fractional excretion of sodium |
| DisplayName | en-US | Fractional excretion of sodium |
LOINC Version: 2.81