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Test ID: PTP    
Porphyrins, Total, Plasma

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

Monitoring treatment of patients with porphyria cutanea tarda

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

Plasma specimens from patients with active porphyria cutanea tarda, congenital erythropoietic porphyria, and erythropoietic protoporphyria may exhibit increased plasma porphyrin levels. However, a definitive diagnosis cannot be made by plasma analysis alone.

Reflex Tests Lists test(s) that may or may not be performed, at an additional charge, depending on the result and interpretation of the initial test(s)

Test IDReporting NameAvailable SeparatelyAlways Performed
PFPPorphyrins, Fractionation, PNoNo

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

If total porphyrins are >1.0 mcg/dL, then PFP / Porphyrins, Fractionation, Plasma will be performed at an additional charge.

 

The following algorithms are available in Special Instructions:

-Porphyria (Acute) Testing Algorithm

-Porphyria (Cutaneous) Testing Algorithm

-The Heme Biosynthetic Pathway

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

PTP: Extraction and Scanning Spectrofluorometry

PFP: High-Performance Liquid Chromatography (HPLC)

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

Porphyrins, Total, P

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

Congenital Erythropoietic Porphyria (CEP)
Coproporphyrin
Erythropoietic Protoporphyria (EPP)
Porphyria Cutanea Tarda (PCT)
Protoporphyrin
Uroporphyrin
Variegate Porphyria
X-linked Dominant Protoporphyria (XLDPP or XDP)