Test Catalog

Test ID: PPFE    
Protoporphyrins, Fractionation, Whole Blood

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

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

Specimen Type Describes the specimen type validated for testing

Whole blood

Advisory Information

This test is for assessment for protoporphyria. The preferred test for lead toxicity in children is blood lead (see PBDB / Lead with Demographics, Blood).

Necessary Information

Include a list of medications the patient is currently taking.

Specimen Required Defines the optimal specimen required to perform the test and the preferred volume to complete testing

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

Special Instructions Library of PDFs including pertinent information and forms related to the test

Forms

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

Specimen Minimum Volume Defines the amount of sample necessary to provide a clinically relevant result as determined by the Testing Laboratory

3 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected

Hemolysis

Mild reject; Gross reject

Lipemia

NA

Icterus

NA

Other

NA

Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the performing laboratory, alternate acceptable temperatures are also included

Specimen TypeTemperatureTime
Whole bloodRefrigerated7 days