NS1 Antigen Test

Description

About the Dengue NS1 Antigen Test in Delhi

The Dengue NS1 Antigen Test is a blood test used to detect the ... presence of the NS1 protein of the dengue virus in the body.
NS1 (Non-Structural Protein 1) is produced by the dengue virus during the early stages of infection. This test helps doctors diagnose dengue fever quickly, even before the body starts producing antibodies.

In Delhi, where dengue cases rise especially during and after the monsoon season (July to November), this test is crucial for early detection.
It is generally recommended within the first 1 to 5 days of symptom onset when the viral load is high and the NS1 protein is detectable.

The test is simple, minimally invasive (only a blood sample is needed), and widely available at most diagnostic centers and hospitals across Delhi.

When Is the Dengue NS1 Antigen Test Prescribed?

Doctors usually recommend the Dengue NS1 Antigen Test if a patient shows early signs of dengue fever, such as:

High fever (sudden onset)

Severe headache

Pain behind the eyes

Muscle and joint pains (sometimes called "breakbone fever")

Skin rash

Nausea and vomiting

Fatigue

The test is particularly prescribed during the first week of fever because:

Antibody-based tests (IgM/IgG) may not detect the infection early.

The NS1 antigen is present in the blood before the immune system responds.

Additionally, in Delhi, doctors often suggest this test if there is an outbreak or if the patient lives in a high-risk area where dengue transmission is high.

Time Required for the Test Report + Next Steps

Sample Collection: Blood is collected through a simple venipuncture (drawing blood from a vein).

Time for Report:

Most labs in Delhi provide the NS1 Antigen Test report within 6 to 24 hours.

Some premium diagnostic centers even offer same-day reports if the sample is given early in the day.

Next Steps After the Report:

If Positive:

Immediate consultation with a physician is needed.

Monitoring for warning signs like bleeding, persistent vomiting, and difficulty breathing is critical.

Hospitalization may be required if severe symptoms appear (especially for dengue hemorrhagic fever or dengue shock syndrome).

Adequate hydration, bed rest, and symptomatic management are advised.

If Negative:

The doctor might suggest further testing (like Dengue IgM or PCR) if dengue is still suspected but symptoms continue.

Sometimes repeat testing after a few days is recommended.

In both cases, early detection and proper care are key to a smooth recovery from dengue.