Porphobilinogen, Urine, Quantitative
| Sunquest Code: | PBGU | ||
| Epic Code: | LAB6056 | Epic Name: | PORPHOBILINOGEN URINE QT |
| Methodology: | Ion exchange chromatography/spectrophotometry | ||
| Turnaround Time: | Specimens are sent to reference laboratory Mon-Sat; results are reported within 1-4 days. | ||
| Associated Links: | |||
Collection Instructions
| Specimen: | Urine, random or timed collection |
| Optimal Volume: | Submit entire collection; analysis requires 3.5 mL |
| Container: | Plastic leakproof container, sterile (3 L plastic jug) |
| Collection Instructions: | Protect from light; refrigerate; 24 hour collection preferred. |
| Causes for Rejection: | Not protected from light; stored at room temperature. Body fluids other than urine. |
Processing and Shipping
| Specimen Processing: | Aliquot 8 mL, 3.5 mL minimum. Protect from light. Store in freezer. Accepted up to 4 days after collection if refrigerated and light protected. Record total volume and collection time interval on transport tube. |
| Shipping Instructions: | Ship on dry ice. |
| Test Performed at or Referral Lab | Lab Sendouts (ARUP) |
| Referral Lab number: | 80260 |
Interpretive
| Reference Range: | Random Urine: 0.0-8.8 umol/L 24-Hour Urine: 0.0-11.0 umol/L |
| Use: |
Diagnosis and differentiation of porphyrias. In acute porphyric attacks seen with acute intermittent porphyria, hereditary coproporphyria, and variegate porphyria, porphobilinogen is increased.
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