At a Glance
Test: Dengue NS1 Antigen (Rapid). Result: Positive or negative. Price: From 600. Fasting: Not required. Sample: Blood (serum). Reports: Within 12 hours, digital. Home collection: Available across Faridabad; any charge is shown at booking. Lab: NABL-accredited.
What NS1 Is
NS1 is a protein the dengue virus produces and releases into the blood while an infection is active. It becomes detectable in the early days of fever and declines as the immune system responds. This is why the test is most informative in roughly the first five to seven days of illness; later, antibody tests — IgM, then IgG — are the better evidence.
Making Sense of the Result
A positive result indicates current dengue infection and should be taken to a doctor the same day. A negative result is not conclusive. It may be negative when the fever is several days old, when the virus level is low, or in a repeat infection, where the test detects fewer cases than in a first infection. If symptoms continue, doctors usually repeat the test or add dengue IgM and IgG.
Fever, Shifts and Physical Work in Faridabad
Faridabad's workforce includes many industrial shifts, early starts and physically demanding jobs, and a fever is often worked through for a day or two. Early testing is what makes this test reliable, so a sample taken before a shift or straight after one beats waiting for a day off. The test needs no fasting and no preparation, which is why it fits around a shift pattern more easily than most blood tests.
Platelets and the Blood Count
Doctors follow the Platelet Count across several days in dengue, since a falling trend is what guides care. The Complete Blood Count (CBC) + ESR is a separate test that can be booked together with this one. Dengue and malaria are endemic across Delhi NCR, and cases usually rise after the monsoon.
Warning Signs
Do not wait for a report if there is severe abdominal pain, persistent vomiting, bleeding from the gums or nose, black stools, extreme drowsiness or restlessness, or cold clammy skin as the fever settles; go to a hospital. Doctors generally advise against aspirin and ibuprofen when dengue is suspected, so ask which fever medicine is safe. Muscle aches after heavy work should not be assumed to explain a fever.
What Is Not Included
This is one test. It does not include Dengue IgM or IgG, a Platelet Count or full blood count, dengue PCR or serotyping, or any malaria, typhoid or chikungunya test. The Dengue Profile-Rapid Dengue IgG, Dengue IgM, Dengue NS1 Ag covers all three dengue markers in one booking and suits a fever already several days old. Results should be read by a doctor alongside symptoms.
Content last reviewed: October 2026