74835-0

LOINC 2.82

Porphyrin fractions panel - Stool

Porphyrin Fract Pnl SFr Stl

Definition

  • Determination of porphyrin profile in stool is performed to evaluate porphyria. Total fecal porphyrins are markedly increased especially in active HCP (Hereditary Coproporphyria) and VP (Variegate Porphyria) and to a lesser extent in PCT (Porphyria Cutanea Tarda) and EPP (Erythropoietic Protoporphyria). Porphyrins with 2-4 carboxyl groups generally predominate in feces. As with urine, it is most useful to measure the total amount of porphyrins in a fecal sample. If increased, then the laboratory may determine which porphyrins predominate to identify the presence and nature of the porphyrin defect. A summary of the different porphyria disorders, the genes where mutations occur and the associated symptoms is given in: http://www.porphyria-europe.com/02-for-healthcare/the-porphyrias.asp.

Component

  • Porphyrin fractions panel

Specimen / system

  • Stool

Class

  • PANEL.CHEM

Property

  • SFr

Scale

  • -

Related names

  • Bowel movement; Chemistry; Faecal; Faeces; Fecal; Feces; Frac; Fract; Fraction; Fractionated; Fractionation; Pan; PANEL.CHEMISTRY; Panl; Percent; Pnl; Point in time; Porphyrin Fract Pnl; Random; Stl; Stool = Fecal; Substance Fraction

Index terms

  • Bowel movement
  • Chemistry
  • Faecal
  • Faeces
  • Fecal
  • Feces
  • Frac
  • Fract
  • Fraction
  • Fractionated
  • Fractionation
  • Pan
  • PANEL.CHEMISTRY
  • Panl
  • Percent
  • Pnl
  • Point in time
  • Porphyrin Fract Pnl
  • Random
  • Stl
  • Stool = Fecal
  • Substance Fraction