Genetic Testing Company | The DNA Diagnostic Experts | GeneDx

In observance of Labor Day, GeneDx will be closed and will not accept specimens on Monday, September 7, 2015.  We will resume our normal schedule on Tuesday, September 8, 2015.  If you have any questions or inquiries, please call us at 301-519-2100 or email us at zebras@genedx.com.

LQTS Del/Dup Panel

FORMS AND DOCUMENTS

TEST DETAILS

Genes:
AKAP9, ANK2, CACNA1C, CAV3, KCNE1, KCNE2, KCNH2, KCNJ2, KCNQ1, SCN4B, SCN5A, SNTA1
Disorders:
Clinical Utility:
  • Confirmation of a clinical diagnosis in symptomatic patients
  • Risk assessment for asymptomatic family members of a proband with LQTS
  • Recurrence risk calculation
  • Differentiation of hereditary LQTS from acquired (non-genetic) causes of LQTS.
  • Prenatal diagnosis in families with a known mutation
Lab Method:
Exon Array CGH
Clinical Sensitivity:
75%

ORDERING

Test Code:
484
Turnaround Time:
4 weeks
Preferred Specimen:
2-5 mL Blood - Lavender Top Tube

BILLING

CPT Codes:
81282x1
New York Approved:
Yes
ABN Required:
Yes
Billing Information:
View Cardiology Billing Policy
ICD Codes:
  • 427.4: Ventricular fibrillation and flutter
  • 427.9: Cardiac dysrhythmia, unspecified Arrhythmia (cardiac) NOS
  • 426.82: Long QT syndrome
  • 427: Cardiac dysrhythmias
* For price inquiries please email zebras@genedx.com

REFERENCES

  1. Online Mendelian Inheritance in Man. www.ncbi.nlm.nih.gov/sites/entrez?db=OMIM
  2. Eddy CA et al., (2008) Heart Rhythm. 5(9):1275-1281.
  3. Vincent GM et al., (1998) Ann Rev Med 49:263-274.
  4. Moss AJ et al., (1995) Circulation 92:2929-2934.
  5. Lehnart SE et al., (2007) Circulation 116(20):2325-2345.
  6. Tester DJ et al., (2010) Am J Cardiol.106:1124 –1128

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