Dengue NS1 antigen is a blood test that helps detect dengue infection early by identifying the NS1 protein of the virus in the blood. Doctors usually recommend it during the first few days of fever, especially when dengue is suspected because of symptoms like high temperature, headache, body pain, rash, or low platelet concerns. It is useful for early diagnosis and timely treatment decisions, particularly when confirmation is needed before antibodies rise. Through Seviyaar, patients in Hyderabad can book the test easily through the lab tests booking platform with NABL-certified laboratories, home sample collection, and quick digital reports. The test is commonly used when fever needs prompt laboratory evaluation for dengue infection.