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Test ID: TTRX    
Amyloidosis, Transthyretin-Associated Familial, Reflex, Blood

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

Diagnosis of adult individuals suspected of having transthyretin-associated familial amyloidosis

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

Mass spectrometry to evaluate transthyretin (TTR) protein structure is performed first. In all cases demonstrating a structural change, the TTR gene will be further analyzed by DNA sequence analysis. If no alterations are detected, the reflex full gene analysis will not be performed unless a specific request for ATTRZ / TTR Gene, Full Gene Analysis is submitted by the ordering physician or client.

Reflex Tests Lists tests that may or may not be performed, at an additional charge, depending on the result and interpretation of the initial tests.

Test IDReporting NameAvailable SeparatelyAlways Performed
ATTRZTTR Gene, Full Gene AnalysisYesNo

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

If familial amyloidosis by liquid chromatography-mass spectrometry is abnormal, DNA sequence will be performed and charged separately.

 

See Amyloidosis (Familial) Test Algorithm in Special Instructions.

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

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

Liquid Chromatography-Mass Spectrometry (LC-MS)

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

Yes

Reporting Name Lists a shorter or abbreviated version of the Published Name for a test

Familial Amyloidosis Reflex