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Test ID: PQNU    
Porphyrins, Quantitative, Urine

Secondary ID A test code used for billing and in test definitions created prior to November 2011

8562

NY State Approved Indicates the status of NY State approval and if the test is orderable for NY State clients.

Yes

Useful For Suggests clinical disorders or settings where the test may be helpful

Preferred screening test during symptomatic periods for acute intermittent porphyria, hereditary coproporphyria, and variegate porphyria (additional confirmatory testing is required to establish a diagnosis)

 

Preferred screening test to begin assessment for congenital erythropoietic porphyria and porphyria cutanea tarda (additional confirmatory testing is required to establish a diagnosis)

Genetics Test Information Provides information that may help with selection of the correct test or proper submission of the test request

Preferred test during symptomatic periods for acute intermittent porphyria (AIP), hereditary coproporphyria (HCP), and variegate porphyria (VP). Preferred test to begin assessment for congenital erythropoietic porphyria (CEP) and porphyria cutanea tarda (PCT).

Testing includes porphobilinogen.

Testing Algorithm Delineates situation(s) when tests are added to the initial order. This includes reflex and additional tests.

The following algorithms are available in Special Instructions: 

-Porphyria (Acute) Testing Algorithm

-Porphyria (Cutaneous) Testing Algorithm

Special Instructions and Forms Describes specimen collection and preparation information, test algorithms, and other information pertinent to test. Also includes pertinent information and consent forms to be used when requesting a particular test

Method Name A short description of the method used to perform the test

High-Performance Liquid Chromatography (HPLC) with Fluorometric Detection

Includes quantitation of coproporphyrins, uroporphyrins, and intermediate porphyrins (heptacarboxyl, hexacarboxyl, and pentacarboxyl).

Includes liquid chromatography-tandem mass spectrometry (LC-MS/MS) determination of porphobilinogen.

Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name

Porphyrins, QN, U

Aliases Lists additional common names for a test, as an aid in searching

Acute Intermittent Porphyria (AIP)
Congenital Erythropoietic Porphyria (CEP)
Coproporphyrin
Hereditary Coproporphyria (HCP)
PBG (Porphobilinogen)
Porphyria Cutanea Tarda (PCT)
Porphyrins, Fractionation, Urine
Uroporphyrin
Variegate Porphyria (VP)