Dengue - Profile

A Dengue Fever Antigen NS1, IgG & IgM test plays a crucial role in diagnosing dengue, a viral infection caused by the dengue virus. This test meas... A Dengue Fever Antigen NS1, IgG & IgM test plays a crucial role in diagnosing dengue, a viral infection caused by the dengue virus. This test measures the levels of the NS1 antigen and IgG and IgM antibodies in the blood. Together, they help determine the stage of infection, differentiate between recent and past infections, and aid in the appropriate and timely management of the infection. Dengue is a viral infection caused by the dengue virus. The virus is transmitted to humans primarily through the bite of infected Aedes mosquitoes. It typically presents with a sudden onset of symptoms, including high fever, severe headache, pain behind the eyes, joint and muscle pain, rash, and mild bleeding. Early detection and differentiation are crucial, as secondary dengue infections can sometimes lead to more severe forms of the disease, such as dengue hemorrhagic fever or dengue shock syndrome. Upon infection, the dengue virus produces NS1 antigen protein during the early stages, and our immune system produces IgG and IgM antibodies in response to the virus. A Dengue Fever Antigen NS1, IgG & IgM test targets these different components of the immune response and the virus itself. The presence of NS1 antigen in the blood indicates an acute phase of infection (within the first few days of symptoms). It helps in early diagnosis, as it can be detected even before the body produces antibodies. IgM antibodies are the first type of antibodies produced by the immune system in response to a dengue infection. They typically appear within 3-5 days after the onset of symptoms and persist for about 2-3 months. Their presence suggests a recent dengue infection. Whereas, IgG antibodies develop later in the course of the disease and stay for an extended period. Their presence indicates a past dengue infection or immunity from a previous infection. However, rising IgG levels may indicate a secondary dengue infection. Usually, no special preparation is required for a Dengue Fever Antigen NS1, IgG & IgM test; eat and drink as per your daily routine. Test result ranges are approximate and may differ slightly between labs depending on the methodology and laboratory guidelines. Talk to your doctor about your specific test results. It is essential to interpret the results with clinical history, symptoms, and other laboratory findings to accurately assess the dengue infection status and formulate an overall treatment plan. read more

A Dengue Fever Antigen NS1, IgG & IgM test is done: If an individual experiences symptoms suggestive of dengue fever, such as fever, body pain, ... A Dengue Fever Antigen NS1, IgG & IgM test is done: If an individual experiences symptoms suggestive of dengue fever, such as fever, body pain, fatigue, nausea, vomiting, rash, and pain behind the eyes. For diagnosis and management of dengue infection. To differentiate between current and past dengue infection. In case of recent travel history to dengue endemic areas. read more

This test measures the presence of the NS1 antigen, which appears in the bloodstream during the early phase of dengue infection, and the IgM and IgG antibodies, which reflect the immune system’s response to the virus. NS1 levels help identify an active infection within the first few days, whereas IgM levels indicate a recent infection, and IgG levels reflect either past exposure or a secondary infection. The results are generally reported as Positive or Negative, and in some labs as numerical index values. Accurate interpretation requires correlation with symptoms, fever duration, and other clinical markers.