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Test Code LAB90912 Protoporphyrins, Fractionation, Whole Blood

Additional Codes

Mayo Test ID
PPFE

Reporting Name

Protoporphyrins, Fractionation, WB
OhioHealth Laboratory Services Note:

46863

Useful For

Evaluating patients with possible diagnoses of erythropoietic protoporphyria or X-linked dominant protoporphyria

 

Establishing a biochemical diagnosis of erythropoietic protoporphyria and X-linked dominant protoporphyria

Testing Algorithm

This test should not be ordered in conjunction with the PEE / Porphyrins Evaluation, Whole Blood.

 

The following algorithms are available in Special Instructions:

-Porphyria (Acute) Testing Algorithm

-Porphyria (Cutaneous) Testing Algorithm

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Whole blood


Necessary Information


Include a list of medications the patient is currently taking.



Specimen Required


All porphyrin tests on whole blood can be performed on 1 draw tube.

 

Patient Preparation: Patient should abstain from alcohol for 24 hours.

Container/Tube:

Preferred: Green top (sodium heparin)

Acceptable: Dark blue top (metal free heparin) or green top (lithium heparin)

Specimen Volume: Full tube

Collection Instructions: Immediately place specimen on wet ice.


Specimen Minimum Volume

3 mL

Specimen Stability Information

Specimen Type Temperature Time
Whole blood Refrigerated 7 days

Reference Values

FREE PROTOPORPHYRIN

<20 mcg/dL packed cells

 

ZINC-COMPLEXED PROTOPORPHYRIN

<60 mcg/dL packed cells

Day(s) and Time(s) Performed

Monday, Wednesday, Friday; 11 a.m.

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

82542

LOINC Code Information

Test ID Test Order Name Order LOINC Value
PPFE Protoporphyrins, Fractionation, WB In Process

 

Result ID Test Result Name Result LOINC Value
2327 Zinc-Complexed Protoporphyrin 33007-6
2326 Free Protoporphyrin 2892-8
29511 Interpretation 59462-2

Method Name

High-Performance Liquid Chromatography (HPLC) with Fluorescence Detection

Forms

If not ordering electronically, complete, print, and send an Inborn Errors of Metabolism Test Request (T798) with the specimen.