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Dengue Fever NS1 Antigen

Also referred as

NS1 antigen test

Dengue fever test

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For men & women

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The Dengue Fever NS1 Antigen test helps to detect dengue, a viral infection caused by the dengue virus (DENV). This test detects the presence of the dengue NS1 antigen, a protein produced by DENV. It detects the infection during the initial stages, thereby preventing disease progression and severe illness.

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Understanding Dengue Fever NS1 Antigen

Dengue spreads via the bite of an infected Aedes aegypti mosquito, which carries the virus and commonly occurs in tropical and subtropical climates. Most of the infected people do not show any symptoms, but for those that do, the most common symptoms include high fever, body pain, headache, nausea, and rash. Usually, these symptoms improve in about 1-2 weeks, but people who develop a severe dengue infection may need hospitalization, as severe dengue can be fatal.

Currently, there is no specific treatment available for dengue. Hence, early diagnosis with the Dengue Fever NS1 Antigen test is essential to prevent complications. If you have traveled to a place where dengue is common, get tested even if you do not have any symptoms. Additional tests may be needed if you test negative yet show symptoms. Also, reports state that dengue may also spread from an infected mother to her unborn baby. Expecting mothers should get tested if an infection is suspected. Appropriate measures like proper rest, drinking plenty of fluids, and regularly monitoring symptoms can help prevent disease progression and further complications. Usually, no special preparation is required for a dengue fever test; eat and drink as per your daily routine.

Test result ranges are approximate and may vary slightly between labs due to differences in methodology and laboratory guidelines. The Dengue Fever NS1 Antigen test utilizes immunoassay technology, such as ELISA or CLIA, which can vary based upon the availability of different instruments across locations. Talk to your doctor about your specific test results. The results will help them determine your medical condition and formulate an overall treatment plan.

What does Dengue Fever NS1 Antigen measure?

The Dengue Fever NS1 Antigen test measures the NS-1 protein of the dengue virus. This protein is secreted into the blood during the infection; hence, it can only be detected during the early stages of the illness. It is recommended to do the Dengue Fever NS1 Antigen test in the first 5 days of fever. After 7-10 days of continuous fever, the recommended test is Dengue fever antibodies IgG & IgM.

Dengue fever may progress to dengue hemorrhagic fever or dengue shock syndrome if left untreated. Dengue hemorrhagic fever (DHF) includes variable manifestations like bleeding, vomiting blood, passing blood in the stool, difficulty breathing, and cold, clammy skin, especially in the extremities. If progressed, the virus may attack blood vessels, causing capillaries to leak fluid into the space around the lungs (pleural effusion) or the abdominal cavity (ascites).

Dengue shock syndrome (DSS) is a severe complication of dengue fever caused when the body's immune system overreacts to the dengue virus. It can lead to a sudden drop in blood pressure and dehydration; if not managed timely, it may lead to multiple organ failures.

There is no specific treatment for dengue, but early diagnostic testing, such as the Dengue Fever NS1 Antigen test, can prevent the advancement of dengue to its complicated forms.

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FAQs related to Dengue Fever NS1 Antigen

What are the most common symptoms of dengue fever?

The most common symptoms of dengue fever include high fever, body aches, headache, nausea, vomiting, rash, and pain behind the eyes.

What are the clinical types of dengue fever?

The clinical types of dengue fever include dengue fever or break-bone fever with no serious complications; dengue hemorrhagic fever with bleeding, low platelet count, and fluid loss (plasma leakage); and dengue shock syndrome with low blood pressure, severe dehydration, and possible multiple organ failure if not treated appropriately.

What does the Dengue Fever NS1 Antigen test measure?

The Dengue Fever NS1 Antigen test helps to detect dengue, a viral infection caused by the dengue virus (DENV).

How is the Dengue Fever NS1 Antigen test different from a Dengue Antibodies test?

The Dengue Fever NS1 Antigen test helps detect a recently acquired dengue infection, usually within 7 days of symptoms experience, while the Dengue Antibodies test detects the IgM antibodies in the later stages of the infection.

What tests can be done along with the Dengue Fever NS1 Antigen test to detect dengue infection?

Some other tests that can be performed along with the Dengue Fever NS1 Antigen test include an IgM antibody test, an IgA antibody test, and a dengue RT-PCR test.

What does it mean if my Dengue Fever NS1 Antigen test report is positive?

If your Dengue Fever NS1 Antigen test shows positive results, it means you have been infected with the dengue virus.

What foods increase platelets in patients with dengue?

Coconut water, kiwi, apricot, orange, spinach, broccoli, date, walnuts, pomegranate, beetroot, papaya leaves, and whole grains can help increase platelet count in patients with dengue.

Is there any specific treatment available for dengue?

No, there is no specific treatment or antiviral medicine available for dengue. The treatment available is mainly supportive, based on problems it causes (like bleeding and issues with circulation) and laboratory test results (for example, electrolytes, platelets, and hemoglobin).

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Last Updated

6th Oct 2025