DENVIRUS IgG Antibody (Serum) – Immunoassay
This test measures the presence of antibodies against dengue virus in your blood, which helps identify past infection or immunity.
["Detects past dengue virus exposure or immunity through antibody testing."]
Key facts at a glance
- LOINC
- 86861-2
- Short code
- DENV4 NAb Titr Spec Nt
- Synonyms
- DENV4 NAb Titr Spec Nt
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- neut
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
Why This Test Is Done
Your healthcare provider may order this test if you’ve traveled to or live in an area with dengue risk, have symptoms like fever, headache, or body aches, or if you’ve been exposed to the virus. It can also help confirm a diagnosis in cases where other tests are inconclusive or if you have chronic dengue-related conditions.
What to Expect Before the Test
No special preparation is needed. You’ll have a small needle inserted into your arm to draw blood. The process takes about 5 minutes, and you may feel a brief pinch. If you’re pregnant, have a bleeding disorder, or take blood-thinning medications, let your provider know before the test.
What the Results Mean
Positive results indicate you’ve likely had a past dengue infection and may have some immunity. Negative results suggest you haven’t had the virus recently or may need further testing. High antibody levels don’t always mean active infection but can indicate long-term exposure.
Possible Side Effects
Most people experience mild side effects like bruising, slight pain, or swelling at the injection site. Rarely, you might feel lightheaded or dizzy after the blood draw. If you experience severe pain, bleeding, or signs of infection (like fever or redness), contact your provider.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
IgG Antibody to Dengue Virus (Serum)
Frequently asked questions
This test is critical for diagnosing dengue virus infection, especially in regions where the virus is endemic. It helps differentiate between dengue fever and other illnesses with similar symptoms, guides treatment decisions, and assesses immunity for travelers or those at risk of reinfection. High antibody titers may also be used to monitor chronic dengue cases or evaluate vaccine responses.
Results are typically available within 1 to 3 business days, depending on your lab’s processing schedule. Your healthcare provider will discuss the results with you during your follow-up visit.
Alcohol consumption doesn’t affect this test, but avoid heavy drinking or medications that may interfere with blood clotting. If you’re unsure, ask your provider for specific guidelines.
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy