Porphyrin fractions panel [Moles/mass] - Stool 74445-8
LOINC Code
| LOINC code | 74445-8 | ||
|---|---|---|---|
| name | Porphyrin fractions panel [Moles/mass] - Stool | ||
| description | 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. | ||
| status | ACTIVE | ||
Fully-Specified Name | |||
| component | Porphyrin fractions panel | ||
| property | SCnt = Substance Content | ||
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | ||
| system | Stool = Stool = Fecal | ||
| scale | - | ||
| method | |||
Additional Names | |||
| short name | Porphyrin Fract Pnl Stl-sCnt | ||
Basic Attributes | |||
| class | PANEL.CHEM | ||
| type | 1 Laboratory | ||
| order vs. observation | Order | ||
Panel Components | |||
Associated Observations | |||
LOINC codes that represent optional associated observation(s) for a clinical observation or laboratory test. A LOINC term may represent a single associated observation or panel containing several associated observations. | |||
History/Usage | |||
| first released | |||
| last updated | 2.48 | ||
| last change type | MIN - change to field other than name | ||
Related Names | |||
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