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DNA Labs India

C3 Gene C3 deficiency NGS Genetic Test

DNA Labs India | ISO 9001:2015 Certified

C3 Gene C3 deficiency NGS Genetic Test

Short Name: C3 Deficiency NGS Test

Also known as: Complement C3 Genetic Test, C3 Gene Mutation Analysis, C3 Deficiency Screening

C3 Gene C3 deficiency NGS Genetic Test test available at DNA Labs India for ₹20,000. Uses Next-Generation Sequencing (NGS) 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.

NGS Genetic Test🏠 Home Collection

🩺 Medically Reviewed By

Overview

To diagnose C3 deficiency by identifying mutations in the C3 gene using NGS technology, aiding in the management of recurrent infections and immune system dysfunction.

Test Code
4865
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
Next-Generation Sequencing (NGS)
Step 1

Sample Collection

No specific preparation required. Provide clinical history and genetic counseling if needed.

Method: Venipuncture

Step 2

Laboratory Analysis

Blood sample collected via venipuncture by a trained phlebotomist.

Step 3

Report Delivery

Apply pressure to the puncture site to prevent bruising. Resume normal activities.

Timeline: 3 to 4 Weeks

Patient Instructions

1
Before the Test:Genetic counseling to discuss test implications and family history.
2
During the Test:Blood sample collection; procedure takes about 10-15 minutes.
3
After the Test:Results available in 3-4 weeks; follow-up with healthcare provider for interpretation.

About This Test

Who Should Get This Test

To diagnose C3 deficiency by identifying mutations in the C3 gene using NGS technology, aiding in the management of recurrent infections and immune system dysfunction.

How to Prepare

  • Ensure proper identification of patient
  • Use sterile equipment for blood draw
  • Label samples correctly
  • Transport samples at ambient temperature

Doctor's Notes

Reviewed by — MBBS, MD (Medical Genetics) · Reg. No. 8532

"Genetic testing for C3 deficiency is essential for early diagnosis and management of recurrent infections, especially in patients with a family history or unexplained immunodeficiency symptoms."

Last medically reviewed: September 7, 2026

Test Parameters & Specifications

Sample TypeBlood or Extracted DNA or One drop Blood on FTA Card
Sample Volume3-5 mL blood
ContainerEDTA tube or FTA card
Collection MethodVenipuncture

Sample Stability

Blood in EDTA tube
Extracted DNA
Sample Rejection Criteria:
  • Hemolyzed or clotted samples
  • Incorrect labeling
  • Insufficient sample volume

Understanding Your Results

Results indicate the presence or absence of pathogenic variants in the C3 gene. Genetic counseling is recommended for interpretation.
📊

Negative

No pathogenic variants detected; C3 deficiency unlikely based on genetic analysis.

📊

Positive

Pathogenic variant(s) identified; confirms C3 deficiency diagnosis. Clinical correlation and further testing advised.

📊

Variant of Uncertain Significance (VUS)

Genetic change detected but significance unclear; may require family studies or follow-up.

⚠️ When to Consult a Doctor:

Consult a doctor if you have recurrent infections, a family history of C3 deficiency, or if test results are positive or uncertain for guidance on management and treatment.

Limitations

  • May not detect all rare variants or deep intronic mutations
  • Results require clinical correlation
  • Not suitable for carrier testing without family history

Risks & Considerations

  • Minor bruising or discomfort at blood draw site
  • Rare risk of infection or fainting

Interfering Factors

  • Sample contamination
  • Degraded DNA
  • Incorrect sample storage

Frequently Asked Questions

What is C3 deficiency?
C3 deficiency is a rare genetic disorder caused by mutations in the C3 gene, leading to impaired complement system function and increased susceptibility to bacterial infections.
What causes C3 deficiency?
It is caused by inherited mutations in the C3 gene, which is essential for the complement immune pathway. Mutations can be autosomal recessive.
What are the symptoms of C3 deficiency?
Common symptoms include recurrent sinus, ear, lung, and brain infections, fever, fatigue, joint pain, swollen lymph nodes, and enlarged liver or spleen.
How is C3 deficiency diagnosed?
Diagnosis involves clinical evaluation, family history assessment, and genetic testing such as the C3 Gene NGS Genetic Test to identify mutations.
What is the C3 Gene NGS Genetic Test?
It is a next-generation sequencing test that analyzes the C3 gene for mutations causing C3 deficiency, using a blood or DNA sample.
How is the test performed?
A small blood sample is collected, and DNA is extracted and sequenced using NGS technology to detect genetic variants.
What is the cost of the test?
The test costs INR 20000 at DNA Labs India, which includes analysis, report, and home sample collection.
Is the test covered by insurance?
Most insurance plans do not cover genetic testing for inherited conditions like C3 deficiency. Check with your provider for specifics.
How long does it take to get results?
Results are typically available within 3 to 4 weeks after sample collection.
What do the results mean?
Results indicate if pathogenic variants are present. Negative means no variants detected; positive confirms deficiency; VUS requires further evaluation.
Are there any risks to the test?
The test involves minimal risks from blood draw, such as bruising or discomfort. Genetic testing itself has no physical risks.
What should I do if I test positive?
Consult a healthcare provider for management, which may include prophylactic antibiotics, immunoglobulin therapy, and regular monitoring to prevent infections.
Worried about the process? Our certified phlebotomists collect thousands of samples every month across India. The process takes under 5 minutes and is virtually painless. Questions? Message us on WhatsApp — we're here 7 days a week.

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Your Data Privacy

Your medical data is protected under Indian law.

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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