Johns Hopkins DNA Diagnostic Laboratory

PLEASE NOTE: Informed consent from the patient is required prior to ordering a genetic test. The DNA Diagnostic Lab's consent is located on the second page of the requisition form. There is also a patient brochure, "Things Every Patient Should Know Before Consenting to a Genetic Test", available for download.

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Liddle Syndrome / Familial Hypertension
Gene:    SCNN1B; SCNN1G
   
Test:   Sequencing of exon 13 of both SCNN1B and SCNN1G
   
CPT Codes:
 		  83891 x 1
83898 x 4
83904 x 8
83909 x 8
83912 x 1
Sensitivity:   Liddle Syndrome is a rare condition, and series of patients screened for SCNN1B or SCNN1G mutations have not been published.  Our test panel is designed to detect >99% of mutations published to date. 
  
Cost:   $662 per individual
       
Turn Around Time:    3 to 4 weeks
Special Considerations:   Phenotypic information is extremely helpful.  
 

Link to Sample Requirements

Link to Requisition and Billing forms

Link to clinical information on Liddle Syndrome.

Link to Patient and Family Page for general resources on genetic testing.