Dengue Fever NS1 Antigen EIA Test
Short Name: NS1 Antigen EIA Test
Also known as: NS1 Antigen Detection, Dengue NS1 EIA Test, Dengue Early Detection Test
Dengue Fever NS1 Antigen EIA Test test available at DNA Labs India for ₹2,457. Uses Enzyme Immunoassay on Serum samples. Results in Reports are typically available the same day if the sample is received by 12 noon.. Free home collection in 300+ cities across India.
🩺 Medically Reviewed By
Dr Kothari Ramesh Shantilal
Consultant Microbiologist · Reg: 27670
Last reviewed: September 7, 2026
Overview
The purpose of the Dengue NS1 Antigen EIA test is to detect the presence of the dengue virus NS1 antigen in blood samples during the early phase of infection. This aids in rapid diagnosis, enabling timely treatment to reduce the risk of severe complications and support public health measures in dengue-endemic regions.
- Test Code
- 478
- Price
- ₹2,457
- Sample Type
- Serum
- Result Time
- Reports are typically available the same day if the sample is received by 12 noon.
- Fasting Required
- No
- Method
- Enzyme Immunoassay
Sample Collection
No special preparation required. Inform your healthcare provider about any medications or supplements.
Method: Venipuncture
Laboratory Analysis
A blood sample will be drawn from a vein in your arm by a trained phlebotomist. The process is quick and minimally invasive.
Report Delivery
Apply pressure to the puncture site with a cotton ball to stop bleeding. You may resume normal activities immediately.
Timeline: Reports are typically available the same day if the sample is received by 12 noon.
Patient Instructions
About This Test
Who Should Get This Test
The purpose of the Dengue NS1 Antigen EIA test is to detect the presence of the dengue virus NS1 antigen in blood samples during the early phase of infection. This aids in rapid diagnosis, enabling timely treatment to reduce the risk of severe complications and support public health measures in dengue-endemic regions.
How to Prepare
- No fasting necessary
- Wear loose-fitting sleeves for easy access to the arm
- Stay hydrated before the test
- Avoid strenuous exercise immediately after collection
Doctor's Notes
Reviewed by Dr Kothari Ramesh Shantilal — MBBS, MD (Microbiology) · Reg. No. 27670
"Early detection with the NS1 antigen test is crucial for managing dengue fever, as it allows for timely intervention to prevent severe complications like hemorrhagic fever. Consult a healthcare provider if symptoms appear."
Last medically reviewed: September 7, 2026
Test Parameters & Specifications
Sample Stability
- Insufficient sample volume (less than 1 mL)
- Incorrect tube type or contaminated sample
- Sample hemolysis or clotting
- Improper labeling or identification
Understanding Your Results
Detected
Positive result suggests early dengue infection. Immediate medical consultation is recommended for management and monitoring.
Not Detected
Negative result indicates no detectable NS1 antigen. If symptoms persist, consider dengue PCR or antibody tests for confirmation, as the test may be negative in later stages.
Consult a doctor immediately if you test positive, or if you experience symptoms like high fever, severe abdominal pain, persistent vomiting, bleeding, or signs of shock, as these may indicate severe dengue.
Limitations
- ⚠Only effective in the early stages of infection (first 1-5 days of symptoms)
- ⚠Does not detect past infections or immune status
- ⚠Cannot differentiate between dengue serotypes
- ⚠Results should be correlated with clinical findings and other tests
Risks & Considerations
- ●Minor pain or bruising at the injection site
- ●Slight risk of infection (rare)
- ●Possible allergic reaction to antiseptic (very rare)
Interfering Factors
- ●Early infection may have low antigen levels leading to false negatives
- ●Cross-reactivity with other flavivirus infections
- ●Hemolyzed or lipemic samples may affect accuracy
Compare With Similar Tests
| Test | Dengue Fever NS1 Antigen EIA Test | Dengue Virus PCR Test | Dengue IgM Antibody Test | Dengue IgG Antibody Test | Complete Blood Count (CBC) |
|---|---|---|---|---|---|
| Comparison | Dengue Fever NS1 Antigen EIA Test | Detects viral RNA and is more accurate in early infection but is costlier and requires specialized labs. | Detects antibodies produced later in infection; useful for confirming past or current infection but not effective in early stages. | Indicates past infection or immunity; not suitable for early diagnosis. | Assesses platelet and white blood cell counts; supportive for dengue diagnosis but not specific. |
Frequently Asked Questions
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