Porphyrins, Feces
| Abbrev Code: | PORFEC | ||
| Order Code: | LAB6886 | Order Name: | Porphyrins, Fecal |
| Methodology: | High performance liquid chromatography | ||
| CPT Codes: | 84126 x1 | ||
| Turnaround Time: | Specimens are sent to reference laboratory Mon-Sat; results are reported within 2-7 days. | ||
| Special Instructions: | Protect from light during collection, storage and shipment. Freeze specimen and wrap in foil immediately after collection.. | ||
Collection Instructions
| Specimen: | Feces |
| Optimal Volume: | 5 grams |
| Minimum\Peds Volume: | 1 grams |
| Container: | Plastic leakproof container, sterile for INPATIENT COLLECTION ONLY, Protect from light Alternate Containers: Plastic leakproof container, sterile |
| Causes for Rejection: | Complete timed collections (24-72 hours). Specimens stored in one gallon cans or other large containers. Liquid stool. Samples stored at room temperature or refrigerated. |
Processing and Shipping
| Specimen Processing: | Store in freezer. CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered. |
| Shipping Instructions: | Ship on dry ice; protect from light. |
| Stability: | 3 weeks frozen |
| Test Performed at or Referral Lab | Lab Sendouts (ARUP) |
| Referral Lab number: | 99824 |
Interpretive
| Reference Range: |
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| Use: | Distinguish among acute intermittent porphyria (AIP), variegate prophyria (VP), and hereditary coproporphyria (HCP). |
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