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Test ID: BTK    
Bruton Tyrosine Kinase (Btk), Protein Expression, Flow Cytometry, Blood

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

Preliminary screening for X-linked agammaglobulinemia (XLA), primarily in male patients (<65 years of age) or female carriers (child-bearing age: <45 years)

 

Because genotype-phenotype correlations are important, the preferred test for confirming a diagnosis of XLA in males and identifying carrier females is:

-BTKFP / Bruton Tyrosine Kinase (BTK) Genotype and Protein Analysis, Full Gene Sequence and Flow Cytometry

-In families where a BTK mutation has already been identified, order BTKMP / Bruton Tyrosine Kinase (BTK) Genotype and Protein Analysis, Known Mutation Sequencing and Flow Cytometry

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

Flow Cytometry

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

No

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

Btk Protein Flow, B

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

Btk (Bruton's Tyrosine Kinase)
Tyrosine Kinase
X-Linked Agammaglobulinemia (XLA)
XLA (X-Linked Agammaglobulinemia)