| CLASS | CHEM | LP7786-9 | 
| COMPONENT | Fractional excretion of magnesium | LP207800-6 | 
| PROPERTY | Ratio | LP6852-0 | 
| TIME_ASPCT | Pt | LP6960-1 | 
| SYSTEM | Urine+Ser/Plas | LP32517-2 | 
| SCALE_TYP | Qn | LP7753-9 | 
| parent | Fractional excretion of magnesium | Urine and Serum or Plasma | Chemistry - non-challenge | LP386038-6 | 
| CLASSTYPE | Laboratory class | |
| ORDER_OBS | Both | |
| EXAMPLE_UNITS | % | |
| EXAMPLE_UCUM_UNITS | % | |
| STATUS | ACTIVE | 
| LONG_COMMON_NAME | en-US | Fractional excretion of magnesium [Ratio] in Urine and Serum or Plasma | 
| LONG_COMMON_NAME | en-US | Fractional excretion of magnesium [Ratio] in Urine and Serum or Plasma | 
| SHORTNAME | en-US | Fracti excret of Mg Ur+SerPl-Rto | 
| ConsumerName | en-US | Fractional excretion of magnesium, Urine+Blood | 
| LONG_COMMON_NAME | es-MX | Excreción fraccionada de magnesio: Orina y suero o plasma : Punto temporal: Proporción: Cuantitativo: | 
LOINC Version: 2.78