DENGUE NS1 ANTIGEN

The Dengue NS1 Antigen Test helps to diagnose the presence of Dengue virus infecting the blood. Dengue fever is a disease of viral origin, transmitted by a mosquito and capable of affecting millions regionally every year. NS1 antigen test is done to know the presence of Non-Structural Protein 1 (NS1) product of dengue virus. The NS1 antigen is detectable in blood from day 1 of infection and for up to 9 days after infection. 

The test employs enzyme-linked immunosorbent assay (ELISA) technology which require combination of antibodies with NS1 antigen. When antibodies are present in the blood, NS1 antigen binds to them, suggesting that the individual is positive for that NS1. 

The test looks for the presence of the dengue virus NS 1 antigen in someone’s blood. The NS1 antigen is a trademark of a person having the dengue virus infection, and its presence confirms the diagnosis of dengue fever. 

The test is taken when a person exhibits signs of fever due to dengue, which include: 

• Migraine 

• Increased body temperature 

• A pain behind the eyeballs 

• Pain in joints and muscles 

• Skin lesions 

The test is also conducted in patients who have just returned from a place where outbreaks of dengue fever is prevalent.  

This antigen test is relatively safe. However, there are some risks that comes with it. 

• Although, the test is likely to miss the presence of NS1 antigen in the initial phase of the infection (24-48 hours) and onwards. 

• The test is likely to miss differentiating the different types of dengue virus.  

• The accuracy of the test can change for patients suffering with immunocompromised. 

The task checks for the existence of the NS1 antigen in the body. Medical experts search for the following parameters: 

• NS1 antigen levels: A positive result shows a presence of the NS1 antigen in the blood.  

• Clinical symptoms: The test result must be analysed together with other clinical symptoms for the patient like fever, headache, or rashes.  

The test is prescribed to people who: 

• Have the signs of dengue fever. 

• Were in the vicinity of an outbreak of dengue fever recently.  

• Were and are in contact with the dengue infected individual.  

• Suffers from low immunity.  

The test aids in the diagnosis of the disease dengue and is important in the management of treatment to avoid the complications. Timely diagnosis will also help curb the rising number of infections. 

This test is done to diagnose dengue fever which is a viral infection caused by the dengue virus. 

A patient scheduling a test does not need to take any special measures in preparation for it, but it is suggested that they: 

• Speak with their doctor concerning medications or supplements they utilize. 
• Refrain from eating or drinking anything for 4 to 6 hours before the test is conducted. 

Prerequisites: None 

Eligibility: The test can be taken by anyone, though it is usually done by those who experience symptoms of the disease or have been in contact with the infected person. 

Procedure of taking the test: Blood is drawn from a vein in the arm. 

Caution Before the Test: None