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Part Description

LP207800-6   Fractional excretion of magnesium
The fractional excretion of magnesium (FEMg) is a measure of the percentage of magnesium excreted in the urine versus the magnesium reabsorbed by the kidney. For hypomagnesemic patients with normal renal function, FEMg is a useful tool for determining the etiology of hypomagnesemia. A value of more than four per cent is indicative of inappropriate renal magnesium loss. PMID: 9513927 Source: Regenstrief LOINC, PMID:9513927

LOINC Names Get Info

Fully-Specified Name
Fractional excretion of magnesium:Ratio:Pt:Urine+Ser/Plas:Qn:
Long Common Name
Fractional excretion of magnesium [Ratio] in Urine and Serum or Plasma
Short Name
Fracti excret of Mg Ur+SerPl-Rto
Display Name
Fractional excretion of magnesium (U+S/P) [Ratio]
Consumer Name Alpha Get Info
Fractional excretion of magnesium, Urine+Blood

Part Model Get Info

  • Component
    Fractional excretion of magnesium
    LP207800-6
    • Analyte
      Fractional excretion of magnesium
      LP207800-6
      • Component Numerator
        Fractional excretion of magnesium
        LP207800-6
        • Component Numerator Core
          Fractional excretion of magnesium
          LP207800-6
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    Ratio
    LP6852-0
  • Time
    Pt
    LP6960-1
  • System
    Urine+Ser/Plas
    LP32517-2
    • System Core
      Urine+Ser/Plas
      LP32517-2
    • Super System
      NULL
       
  • Scale
    Qn
    LP7753-9
  • Method
    NULL
     

Basic Attributes

Class
CHEM
Type
Laboratory
First Released
Version 2.56
Last Updated
Version 2.56 (ADD)
Order vs. Observation
Both

Formula (Readable)

FEMg = ((UMg x Cr)/(0.7 x Mg) x UCr) x 100 (UMg = random urine magnesium, UCr = random urine creatinine, Mg = plasma or serum Mg, Cr = plasma or serum creatinine)

Language Variants Get Info

TagLanguageTranslation
cs-CZCzech (Czechia)Frakční exkrece hořčíku:Poměr:Časový bod:Moč a sérum/plazma:Kvantitativní:
el-GRGreek (Greece)Κλασματική απέκκριση μαγνησίου:Ratio:Pt:Ούρα+Ορός/Πλάσμα:Qn:
Synonyms: CHEM Pt Qn Ratio Κλασματική απέκκριση μαγνησίου Μαγνήσιο Ορός Ορός/Πλάσμα Ούρα Ούρα+Ορός/Πλάσμα Πλάσμα
es-ESSpanish (Spain)Excreción fraccionada de magnesio:Fracción:Punto temporal:Orina y suero o plasma:Qn:
Synonyms: Cuantitativo
es-MXSpanish (Mexico)Excreción fraccionada de magnesio:Proporción:Punto temporal:Orina y suero o plasma:Cuantitativo:
fr-FRFrench (France)Magnésium excrétion fractionnée:Ratio:Ponctuel:Urine+Sérum/Plasma:Numérique:
it-ITItalian (Italy)Escrezione frazionata di magnesio:Rapporto:Pt:Urina+Siero/Plasma:Qn:
Synonyms: Chimica Plasma Punto nel tempo (episodio) Siero Siero o Plasma Urine & Siero o Plasma
zh-CNChinese (China)镁排泄分数:比率:时间点:尿液+血清/血浆:定量型:
Synonyms: MAG;Mg 化学;化学检验项目;化学检验项目类;化学类;化学试验;非刺激耐受型化学检验项目;非刺激耐受型化学检验项目类;非刺激耐受型化学试验;非刺激耐受型化学试验类 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 尿 & 血清或血浆;尿+血清/血浆;尿与血清或血浆;尿液 & 血清或血浆;尿液与血清或血浆 尿;小便;下泉 时刻;随机;随意;瞬间 来自于不同体系的两个观察指标之比;比;比值 血清或血浆 镁排出分数;镁排出比率;FEMg

Example Units

UnitSource
%Example UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=80958-2