Test Overview
Test Methodology

Extraction and Scanning Spectrofluorometry

Test Usage

Monitoring treatment of patients with porphyria cutanea tarda.

Reference Range *

< or = 1.0 mcg/dL

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Monday - Friday
Analytic Time

2 - 5 days

Soft Order Code
PTP
Synonyms
    Laboratory
    Sendout
    Reference Laboratory
    Mayo PTP (8731)
    Section
    Special Testing
    Specimen Requirements
    Collection Instructions

    Patient should abstain from alcohol for 24 hours prior to specimen collection. Please forward a list of medications the patient is currently taking with the specimen. Collect specimen in a green top tube. Centrifuge, aliquot plasma into a plastic vial and freeze. Protect specimen from light.

    Special Handling

    Protect specimen from light.

    Normal Volume
    3 mL plasma, protected from light
    Minimum Volume
    1 mL plasma, protected from light
    Storage Temperature
    Strict frozen
    Additional Information

    If total porphyrins are >1.0 mcg/dL, then Porphyrins, Fractionation, Plasma (PFP) will be performed at an additional charge. By ordering this test the clinician acknowledges that additional reflex testing will be performed and billed at a separate additional charge if indicated. Test sent to Mayo Medical Laboratories.

    Billing
    CPT Code
    84311
    Reflex CPT
    82492
    NY State Approved
    No