Porphyrins, Total
Order Name
PORPH PLS
Test Number: 3812550
Revision Date 04/18/2023
Test Number: 3812550
Revision Date 04/18/2023
| Test Name | Methodology | LOINC Code |
|---|---|---|
|
Porphyrins, Total
|
| SPECIMEN REQUIREMENTS | ||||
|---|---|---|---|---|
| Specimen | Specimen Volume (min) | Specimen Type | Specimen Container | Transport Environment |
| Preferred | 3 mL (1 mL) | Plasma | Sodium Heparin (Green Top / No-Gel) | Frozen |
| Instructions | Specimen Type: Green-top (heparin) tube, (no gel-barrier tubes accepted) Specimen Storage: FREEZE Specimen Collection: PROTECT FROM LIGHT Plasma should be separated from cells within two hours of venipuncture. Send plasma in a plastic transport tube. Special Instructions: Testing referred to BioAgilytix Diagnostics Lab E=#- |
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| GENERAL INFORMATION | |
|---|---|
| Expected TAT | 10-14 Days |
| Clinical Use | Useful for evaluation of cutaneous photosensitivity to rule out porphyrin disorders, particularly erythropoietic protoporphyria. The best specimen for evaluation of suspected porphyria cutanea tarda (PCT) is a urine specimen. Continued monitoring of PCT with serum is an acceptable practice. Evaluation of neurologic and/or psychiatric symptoms associated with suspected acute porphyria (such as acute intermittent porphyria) requires Porphobilinogen (PBG), Urine. |
| Performing Labcorp Test Code | 823239 |
| Notes | Labcorp Test Code: 823239 |
| CPT Code(s) | 84311 |
| Lab Section | Reference Lab |