Dengue NS1 Antigen
Also called: NS1 Antigen
Detects dengue virus in the first 5 days of illness — earliest reliable dengue test.
- Duration
- 5 min
- Report
- Same day
- Sample
- Blood
- Fasting
- Not needed
What this test is
The NS1 antigen test detects a protein released by the dengue virus into the blood. It is positive from day 1 of fever and remains so for about 5–7 days. Beyond that window, dengue IgM antibodies become detectable instead. NS1 is the preferred first test if you've had fever for less than 5 days during a dengue-prone season in Pune (July to November).
When you need this test
- High fever for 2–5 days in monsoon season
- Severe body and joint pain ('break-bone fever')
- Skin rash with fever
- Falling platelet count with unexplained fever
How to prepare
- No fasting required.
- Best done within 5 days of fever onset.
- Mention the day of fever when booking — affects whether NS1 or IgG/IgM is appropriate.
- Bring or mention any platelet counts from previous days.
Why DiagnoHouse for this test
NABL-accredited lab
Quality-audited blood, urine, and stool analysis.
Home collection
Free across Pimpri-Chinchwad. Sample picked up at your time slot.
Same-day reports
Most pathology reports ready within 4 hours of collection.
Calibrated equipment
Analysers calibrated daily; quality controls run with every batch.
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- Duration
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- Report time
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- Report time
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- Report time
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FAQs
Is NS1 enough to confirm dengue?
A positive NS1 is highly specific and is considered confirmatory. Negative NS1 with strong symptoms after day 5 — switch to dengue IgM.Do I need a CBC alongside?
Yes — a CBC every 24–48 hours during dengue tracks platelet count, which is the most important number for management.Home collection?
Yes — important when you have fever and shouldn't travel. Our phlebotomist will collect at home.
Need help choosing?
Not sure if this is the right test for you? Have a doctor's note? Call or WhatsApp — guidance is free.
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