11 days
High-pressure liquid chromatography (HPLC) with fluorometric detection
Test Includes: Coproporphyrins I and III, uroporphyrins, heptacarboxylporphyrins, hexacarboxylporphyrins, pentacarboxylporphyrins
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Quantitative urine test for porphyrins over 24 hours. Evaluates porphyria.
24 hour urine, protected from light
2 mL aliquot
12 mL amber plastic transport tube without preservative
No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.
Refrigerated and protected from light
| Temperature | Period |
|---|---|
| Refrigerated | 7 days |
| Frozen | 14 days |