What is Dengue IgG/IgM Test?
Dengue IgG/IgM qualitative test is a blood test designed to detect specific antibodies produced in response to infection with a dengue virus. These antibodies include:
IgG – Indicates recent or past infection.
IgM – Suggests past exposure or immunity.
This test helps diagnose dengue fever and monitor immune response, aiding in effective treatment and prevention of complications such as dengue hemorrhagic fever.
How is the Test Performed?
The test involves collecting a blood sample, usually from a vein in the arm. The sample is then analyzed in the lab using an enzyme-linked immunosorbent assay (ELISA) to detect the presence of IgG and IgM antibodies.
What are the symptoms that prompt this test?
The symptoms of dengue are the same in both children and adults. However in children the symptoms can be severe due to developing immune system. Symptoms usually vary from one person to other, common symptoms include:
- High fever (104°F)
- Severe headache
- Pain behind the eyes
- Muscle and joint pains
- Nausea and vomiting
- Swollen glands
- Rash
- Loss of appetite
- Irritability or drowsiness
What are Normal Ranges for This Test?
IgG – Negative or below the detectable threshold.
IgM – Negative or below the detectable threshold.
Presence of IgM suggests a current or recent infection, while IgG indicates past exposure.
**The above-given reference value is for general guidelines only. Your healthcare provider will give you the correct interpretation of the results. **
What Happens if Test Results Show Abnormal Levels?
Positive IgM –Indicates an active or recent dengue infection. The doctor may recommend supportive care and hydration.
Positive IgG – Suggests past infection or immunity. No immediate treatment is required unless symptoms persist.
Both IgG and IgM Positive – May indicate a secondary infection, which can be more severe. Further evaluation and hospitalization may be necessary.
