Porphyrins, Total with Reflex to Porphyrins Fractionation, Plasma
| Abbrev Code: | PORTOF | ||
| Order Code: | LAB6887 | Order Name: | Porphyrins, Total Reflex Fraction |
| Synonyms: | Pentacurboxyl Porphyrins | ||
| Methodology: | Extraction/scanning spectrofluorometry/high performance liquid chromatography | ||
| CPT Codes: | 84311 x1, 82542 x1 | ||
| Turnaround Time: | Specimens are sent to reference laboratory Mon-Sat; results are reported within 5-8 days. | ||
| Special Instructions: | Protect from light. Include a current list of patient medications. | ||
Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 6 mL |
| Minimum\Peds Volume: | 2.2 mL |
| Container: | 10 mL green (sodium heparin) - protect from light Alternate Containers: 10 mL Purple EDTA - protect from light |
| Patient Preparation: | Patient should abstain from alcohol for 24 hours prior to collection. |
| Causes for Rejection: | Samples not protected from light; separator tubes; samples stored at room temperature or refrigerated. |
Processing and Shipping
| Specimen Processing: | Centrifuge and aliquot 3 mL, 1 mL minimum into a light protected vial. Freeze immediately CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered. |
| Shipping Instructions: | Ship on dry ice. |
| Stability: | 2 weeks frozen |
| Test Performed at or Referral Lab | Lab Sendouts (ARUP) |
| Referral Lab number: | 2006593 |
Interpretive
| Reference Range: |
By report.
|
| Use: | If total porphyrins are greater than 1.0 mcg/dL, then fractionation will be performed. |
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