|Test||PORPHYRINS TOTAL, PLASMA|
|Methodology||Porphyrins Total: Extraction and Scanning Spectrofluorometry
Porphyrins Fractionation: High-Performance Liquid Chromatography (HPLC)
If porphyrins, total is > 1.0 ug/dL, then porphyrins
|Description||The porphyrias are a diverse group of disorders caused by
defects in the biosynthesis of heme and characterized by
accumulations of porphyrinogens and porphyrins in plasma,
red blood cells, tissues, urine, and/or feces.
Plasma porphyrin concentrations in plasma may be increased
|Specimen||1. Patient should abstain from alcohol for 24 hours
2. Draw blood in green-top (heparin) tube(s). (PLASMA GEL tube is not acceptable). Spin down and send 3.0 mL (minimum: 1.0 mL) of heparinized plasma FROZEN in amber plastic vial to protect from light.
3. Please include a list of medications the patient is currently
taking and forward with the specimen.
NOTE: SPECIMENS NOT PROTECTED FROM LIGHT ARE UNACCEPTABLE.
|Reference Values||< or = 1.0 ug/dL|
|Analytic Time||2 Days|
|Day(s) Test Set Up||Monday through Friday|
82492 Porphyrins Fractionation, plasma (if appropriate)
84311 Porphyrins, Total, plasma