2 - 3 days
Porphyrins, Fractionation, Urine
PORPHYRINS, URINE QUANT
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High-Performance Liquid Chromatography (HPLC) with Fluorometric Detection
Screening test during symptomatic periods for acute intermittent porphyria, hereditary coproporphyria, and variegate porphyria (additional confirmatory testing is required to establish a diagnosis). Screening test to begin assessment for congenital erythropoietic porphyria and porphyria cutanea tarda (additional confirmatory testing is required to establish a diagnosis).
UROPORPHYRINS (octacarboxyl): < or =30 nmol/24 hours. HEPTACARBOXYLPORPHYRINS: < or =9 nmol/24 hours. HEXACARBOXYLPORPHYRINS: < or =8 nmol/24 hours. PENTACARBOXYLPORPHYRINS: < or =10 nmol/24 hours. COPROPORPHYRINS (tetracarboxyl): Males: < or =230 nmol/24 hours; Females: < or =168 nmol/24 hours. PORPHOBILINOGEN: < or =2.2 mcmol/24 hours.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.