KCNQ1 Gene Long QT syndrome type 1 NGS Genetic Test
Short Name: KCNQ1 LQTS Type 1 NGS Test
Also known as: LQTS Type 1 Genetic Test, KCNQ1 Mutation Analysis, Long QT Syndrome Type 1 NGS Test
KCNQ1 Gene Long QT syndrome type 1 NGS Genetic Test test available at DNA Labs India for ₹20,000. Uses NGS Technology on Blood or Extracted DNA or One drop Blood on FTA Card samples. Results in 3 to 4 Weeks. Free home collection in 300+ cities across India.
🩺 Medically Reviewed By
Dr SULOCHANA HEMCHANDRA HOLLA
Consultant Medical Geneticist · Reg: 8532
Last reviewed: September 7, 2026
Overview
The purpose of the KCNQ1 Gene Long QT Syndrome Type 1 NGS Genetic Test is to detect mutations in the KCNQ1 gene associated with Long QT syndrome type 1. This helps in confirming diagnosis, guiding treatment, assessing familial risk, and enabling genetic counseling for affected individuals and their families.
- Test Code
- 5263
- Price
- ₹20,000
- Sample Type
- Blood or Extracted DNA or One drop Blood on FTA Card
- Result Time
- 3 to 4 Weeks
- Fasting Required
- No
- Method
- NGS Technology
Sample Collection
No specific preparation is required. Inform the healthcare provider about any medications or recent medical procedures.
Method: Venipuncture or saliva collection
Laboratory Analysis
A blood sample will be drawn from a vein in the arm, or a saliva sample may be collected. The process is quick and minimally invasive.
Report Delivery
Apply pressure to the puncture site to prevent bleeding. Resume normal activities unless advised otherwise.
Timeline: 3 to 4 Weeks
Patient Instructions
About This Test
Who Should Get This Test
The purpose of the KCNQ1 Gene Long QT Syndrome Type 1 NGS Genetic Test is to detect mutations in the KCNQ1 gene associated with Long QT syndrome type 1. This helps in confirming diagnosis, guiding treatment, assessing familial risk, and enabling genetic counseling for affected individuals and their families.
How to Prepare
- Ensure proper identification and labeling of the sample
- Use sterile collection equipment
- Follow standard phlebotomy or saliva collection protocols
- Transport sample to the lab within the specified stability period
Doctor's Notes
Reviewed by Dr SULOCHANA HEMCHANDRA HOLLA — MBBS, MD (Medical Genetics) · Reg. No. 8532
"Genetic testing for Long QT syndrome is crucial for early diagnosis, risk assessment, and management, especially in families with a history of sudden cardiac events."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- Hemolyzed or clotted blood samples
- Insufficient sample volume
- Improper labeling or documentation
- Sample contamination
Understanding Your Results
Positive for pathogenic variant
Confirms diagnosis of Long QT syndrome type 1. Recommend clinical evaluation, family screening, and management strategies.
Negative for pathogenic variant
No mutation detected in KCNQ1 gene. Consider other genetic causes or clinical assessment if symptoms persist.
Variant of uncertain significance (VUS)
Further testing and family studies may be needed. Clinical correlation is essential.
Consult a doctor if you experience symptoms like fainting, irregular heartbeat, or chest pain, especially with a family history of LQTS. After receiving test results, seek genetic counseling or cardiology consultation for management.
Limitations
- ⚠May not detect all genetic variants or mutations in non-coding regions
- ⚠Results require interpretation by a genetic specialist
- ⚠Does not replace clinical evaluation or other cardiac tests
- ⚠False negatives or positives are possible, though rare
Risks & Considerations
- ●Minimal risks from blood draw, such as bruising or infection
- ●Psychological impact of genetic results
- ●Potential for inconclusive results requiring further testing
Interfering Factors
- ●Sample contamination or degradation
- ●Insufficient DNA quantity or quality
- ●Recent blood transfusions may affect results
- ●Technical errors in sequencing
Frequently Asked Questions
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₹20,000Reference Laboratory Services
We serve as a reference laboratory for hospitals and clinics across India. Send samples from your facility with same-day pickup, priority processing, and results delivered through our online portal. Competitive institutional pricing available.
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✓ Stored in India: All patient records are stored on servers located in India. No data is transferred outside the country.
✓ DPDP Act Compliant: Under the Digital Personal Data Protection Act 2023, you can request deletion of your records at any time by contacting support.
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