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
Reference Laboratory
Mayo PTP (8731)
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.

CPT Code
Reflex CPT