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DNA Labs India

SARS-CoV-2 Anti-Spike IgG Antibody Quantitative Test

DNA Labs India | ISO 9001:2015 Certified

SARS-CoV-2 Anti-Spike IgG Antibody Quantitative Test

Short Name: COVID-19 Anti-Spike IgG Test

Also known as: COVID-19 Antibody Test, SARS-CoV-2 Spike IgG Test

SARS-CoV-2 Anti-Spike IgG Antibody Quantitative Test test available at DNA Labs India for ₹1,638. Uses CLIA on Serum samples. Results in Reports available within 1 week.. Free home collection in 300+ cities across India.

Blood Test🏠 Home Collection

🩺 Medically Reviewed By

Overview

To detect and quantify IgG antibodies against the spike protein of SARS-CoV-2, indicating past infection or immune response to vaccination.

Test Code
37
Price
₹1,638
Sample Type
Serum
Result Time
Reports available within 1 week.
Fasting Required
No
Method
CLIA
Step 1

Sample Collection

No special preparation required. Ensure the Covid-19 Antibody Test Form (Form 45) is filled.

Method: Venipuncture

Step 2

Laboratory Analysis

A blood sample will be drawn from a vein in your arm.

Step 3

Report Delivery

Apply pressure to the puncture site to stop bleeding. No significant risks.

Timeline: Reports available within 1 week.

Patient Instructions

1
Before the Test:Ensure you have the mandatory form filled. No fasting required.
2
During the Test:Blood sample collection takes a few minutes.
3
After the Test:You can resume normal activities. Apply bandage if needed.

About This Test

Who Should Get This Test

To detect and quantify IgG antibodies against the spike protein of SARS-CoV-2, indicating past infection or immune response to vaccination.

How to Prepare

  • Fill the mandatory Covid-19 Antibody Test Form (Form 45)
  • Sample: 3 mL serum from SST
  • Ship refrigerated or frozen

Doctor's Notes

Reviewed by — MBBS, MD (Microbiology) · Reg. No. 27670

"This quantitative test is essential for assessing post-infection or post-vaccination immunity against COVID-19, aiding in individual and public health decisions."

Last medically reviewed: September 7, 2026

Test Parameters & Specifications

Sample TypeSerum
Sample Volume3 mL (1 mL min.)
ContainerSST (Serum Separator Tube)
Collection MethodVenipuncture

Sample Stability

Room Temperature: 8 hours
Refrigerator: 48 hours
Frozen: 1 week
Sample Rejection Criteria:
  • Incorrect sample type
  • Insufficient volume
  • Unlabeled sample
  • Improperly filled form

Understanding Your Results

Results indicate the presence and level of IgG antibodies against the spike protein of SARS-CoV-2.
📊

Non-reactive (< 1.0 S/CO)

No detectable antibodies, suggesting no past infection or low immune response.

📊

Borderline (1.0-1.4 S/CO)

Indeterminate; recommend retesting after 2 weeks.

📊

Reactive (>= 1.5 S/CO)

Detectable antibodies, indicating past infection or vaccination response.

⚠️ When to Consult a Doctor:

If you have symptoms of COVID-19 or have been exposed, consult a doctor for appropriate diagnosis and management. For antibody test results, discuss with your healthcare provider for personalized advice.

Limitations

  • Not for acute COVID-19 diagnosis
  • Antibody levels may decline over time
  • Cross-reactivity with other coronaviruses possible

Risks & Considerations

  • Minor bruising at puncture site
  • Rarely, infection or dizziness

Interfering Factors

  • Presence of other infections
  • Immunosuppressive medications
  • Recent blood transfusion

Compare With Similar Tests

TestSARS-CoV-2 Anti-Spike IgG Antibody Quantitative TestRT-PCR TestAntigen TestTotal Antibody Test
ComparisonSARS-CoV-2 Anti-Spike IgG Antibody Quantitative Test

Frequently Asked Questions

What is the SARS-CoV-2 Anti-Spike IgG Antibody Quantitative Test?
It is a blood test that measures the quantity of IgG antibodies against the spike protein of SARS-CoV-2.
Why is this test recommended?
To assess immunity after COVID-19 infection or vaccination, and for seroprevalence studies.
What is the cost of the test at DNA Labs India?
The test costs INR 1638, including home sample collection.
How is the test performed?
A blood sample is collected and analyzed using CLIA to detect anti-spike IgG antibodies.
What does a positive (reactive) result mean?
It indicates the presence of IgG antibodies, suggesting past infection or immune response to vaccination.
What does a negative (non-reactive) result mean?
No detectable antibodies, which could mean no past infection or a weak immune response.
Can this test diagnose active COVID-19?
No, it is for past infection or immunity assessment. Use PCR or antigen tests for active infection.
When should I take this test after infection or vaccination?
Typically 2-4 weeks after infection or vaccination for accurate antibody detection.
Is home sample collection available?
Yes, free home collection is available for online bookings across India.
What are the limitations of the test?
It may not detect very low antibody levels, and cross-reactivity with other coronaviruses is possible.
How accurate is the test?
The test has high sensitivity and specificity when performed correctly, but results should be interpreted clinically.
When will I receive my results?
Reports are typically available within one week through online portal, email, or WhatsApp.
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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LIMS Integration

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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