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| Title | PORPHYRINS, FRACTIONATION/QUANTITATION, URINE |
| Specimen Requirement | <p>Collect 24 hour urine. Refrigerate and protect from light during collection. Mix well and send 2.0 mL minimum of urine in an amber screw-capped plastic vial.</p>
<p><strong>Protect from light--Record 24 hour urine volume on test requisition and specimen label.</strong></p> |
| Methodology | |
| Stability | Room Temperature Unacceptable, Refrigerated 4 days, Frozen 1 month |
| Reference Range | By Report* |
| Turnaround | 5-7 days Performed Mon-Fri |
| Clinical Use | <p>Evaluate porphyrias, including those involving deficiencies of enzymes which are needed for heme synthesis and chemical porphyrias.</p> |
| Test Code | UPSR |
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