Dengue Test For Checking Dengue Virus Specific Antibodies

Dengue is an illness caused by a mosquito bite and is characterized by flu-like symptoms: fever, body pain, tiredness, loss of strength, weakening of the immune system, and a decline in the platelet count.

Dengue Test

Here are the basic details for Dengue Test.

Also Known As	Dengue Fever Test, DFT Test, DF Test
Type	Blood Test
Purpose	Check Dengue Virus Presence
Sample Type	Blood
Preparation	No Special Preparation Required
Fasting	No
Gender	All
Age-Group	Any
Normal Value	Negative
Reporting Time	2 - 4 Hours
Cost	1000 - 1500 INR*

*Price range may vary as per location, lab type, and procedure of lab test.

Dengue Test Name

The Dengue test includes several types of tests, including the Dengue IgG/IgM test, Dengue NS1 antigen test, and Dengue PCR test.

Dengue Test Means

The Dengue test measures the presence of antibodies or antigens in the blood that are specific to the Dengue virus, which can cause a range of symptoms including fever, headache, muscle pain, and rash.
The IgG/IgM antibody test measures the levels of these antibodies in the blood, which can help determine if a person has been infected with Dengue in the past or currently has an active infection.
The NS1 antigen test measures the presence of a specific viral antigen in the blood, which can help detect an active Dengue infection in the early stages.
Dengue test results are typically reported as positive or negative based on the presence or absence of specific antibodies or antigens in the blood sample, and interpretation should be done in consultation with a healthcare provider.

Interesting Facts About Dengue

Dengue is a mosquito-borne viral infection transmitted by Aedes mosquitoes, primarily in tropical and subtropical regions.

Dengue fever is characterized by symptoms such as high fever, severe headache, joint and muscle pain, rash, and in some cases, hemorrhagic manifestations.

Dengue is a significant global health concern, with an estimated 390 million infections occurring each year.

Dengue Test Purpose

Here are some key purposes of the Dengue test:

To diagnose a Dengue infection in people who have symptoms consistent with the disease, such as fever, headache, muscle pain, and rash.
To confirm a suspected Dengue diagnosis based on clinical symptoms and other laboratory findings.
To monitor the progression of a Dengue infection and evaluate the effectiveness of treatment.
To assess a person's immune status to Dengue virus and determine if they have been previously infected with the virus.

Dengue Test: Price, Normal Range, Result, Purpose, Meaning and Interpretation - Drlogy Test

Dengue Test Preparation

Here are some general tips for preparing for a Dengue test:

Before Test

There is typically no special preparation required for a Dengue test. However, you should inform your doctor if you are taking any medications or have any medical conditions that may affect the results of the test.

During Test

The specific procedures for a Dengue test may vary depending on the type of test being performed. Some tests may require a blood sample to be taken from a vein in your arm, while others may use a fingerstick or saliva sample.
Follow your doctor's instructions carefully and ask any questions you may have before the test begins.

After Test

In most cases, you can resume your normal activities immediately after a Dengue test.
Your doctor will discuss the results of the test with you and recommend any necessary follow-up care or treatment.

Summary

Prepare for a Dengue test by informing your doctor about medications or medical conditions, follow the specific test procedures, and discuss the results and any necessary follow-up care with your doctor.

Dengue Test Procedure

Here are the steps involved in the Dengue Test procedure:

A blood sample is collected from a vein in your arm using a sterile needle and stored in a test tube or vial.
The collected blood sample is sent to a laboratory for analysis.
The laboratory technician will separate the plasma or serum from the blood cells and use it to test for the presence of dengue virus antibodies or viral genetic material.
The test results will be reported to your healthcare provider, who will interpret the results and provide you with the necessary information about your condition.
Depending on the test results, additional testing or treatment may be required.

Dengue Test Result

A positive IgM or IgG result means that the person has been infected with the dengue virus at some point in their life.

If both IgM and IgG tests are positive, it may indicate a recent or current infection.
A negative result does not necessarily rule out dengue infection, especially if the test is done within the first few days after symptoms appear.

Dengue Test Report

Dengue Test Report - Drlogy Test

Dengue Test Report PDF

Dengue Positive Report

Positive Dengue fever test report format example sample template - Drlogy lab Report

Dengue Positve Report PDF

Positive Dengue Report

Dengue Negative Report

Negative Dengue fever test report format example sample template - Drlogy lab Report

Dengue Negative Report PDF

Negative Dengue Report

Dengue Test Normal Range

Here is the normal range of the Dengue Test.

Test	Normal Range
IgG	<0.80 Index = negative >1.19 Index = positive
IgM	<= 1.64 IV = negative >= 2.85 IV = positive
Hemoglobin	Male: 13.5 to 17.5 g/dL Female: 12.0 to 15.5 g/dL
WBC	4,500 - 11,000 cells/mcL
RBC	Men: 4.0 - 5.9 million cells/mcL Women: 3.8 - 5.2 million cells/mcL
Platelet	150,000 - 450,000/mcL

Dengue Test Interpretation

Here is an example of a Dengue test interpretation table:

Test	Interpretation
IgG & IgM	IgG and/or IgM positive = current or past infection with Dengue virus. IgG positive and IgM negative = previous infection or immunization. IgG negative and IgM positive = acute infection. Both IgG and IgM negative = no current or past infection.
Hemoglobin	Hemoglobin levels may be decreased in severe cases of dengue fever due to hemorrhage or internal bleeding.
WBC	Decreased white blood cell count may indicate a viral infection, such as dengue fever.
RBC	Decreased red blood cell count may indicate hemorrhage or internal bleeding, which can occur in severe cases of dengue fever.
Platelet	Decreased platelet count is a hallmark of dengue fever, with severe cases having platelet counts below 100,000/mm³. Low platelet count can lead to bleeding or hemorrhage.

Summary

A positive Dengue test result indicates the presence of Dengue virus antibodies, suggesting a current or previous infection.

Who should get a dengue test?

Here are some examples of who should get a Dengue test:

Individuals who live in or have recently traveled to areas where dengue is prevalent.
Individuals who have symptoms of dengue fever, such as fever, headache, joint and muscle pain, and rash.
Individuals who have been exposed to dengue virus through mosquito bites or contact with infected blood or bodily fluids.
Individuals who have had previous episodes of dengue fever and are experiencing symptoms again.
Individuals who have a weakened immune system or other medical conditions that put them at higher risk for severe dengue fever.

Specimen Requirments For Dengue Test

Here are the specimen requirements for the Dengue Test.

Specimen	Blood Serum
Volume	1 ml
Container	Red-top tube or gel-barrier tub

Dengue Test is Safe?

Dengue tests are generally safe and have a low risk of complications.

The blood draw procedure may cause mild discomfort or bruising at the site, but serious complications are rare.
In some cases, there may be a small risk of infection or bleeding at the puncture site, but this risk can be minimized by following proper sterilization and safety protocols.
As with any medical procedure, it is important to discuss any potential risks or concerns with your healthcare provider.

When Do You Get Dengue Test Results?

The time it takes to get Dengue test results can vary depending on the specific test being used and the laboratory performing the analysis.

In general, results for the IgG/IgM antibody test can usually be obtained within 2 - 4 hours while results for the NS1 antigen test may be available more quickly (within hours) but can take longer in some cases.
It is best to consult with your healthcare provider or the testing laboratory for more specific information on expected turnaround times.

Dengue Test Limitation

Here are some possible limitations of the Dengue Test.

Window period delays detection of recent infections.
Cross-reactivity with other flaviviruses can lead to false-positive results.
Different serotypes may require separate tests for accurate diagnosis.
Sensitivity of the test varies depending on the stage of infection.
False-negative results possible in early stages of illness.

Dengue Test Risk Factors

Here is the potential risk factor of the Dengue Test.

Cross-reactivity with other flaviviruses can lead to false-positive results.
Timing of the test affects its sensitivity and accuracy.
Sensitivity of the test decreases after the first week of infection.
Risk of false-negative results in certain populations (e.g., infants).

Doctor Recommendations After Dengue Test Result

Here are Doctor recommendations or consult a specialist after Dengue Test.

Dengue Test Result	Doctor to Visit	Reason to Go to Doctor
Positive	Infectious Disease Specialist	Severe dengue symptoms, potential complications
Negative	General Practitioner	Routine follow-up and monitoring

Dengue Test Price

Here are the estimated Dengue Test Price in India with different top cities:

City	Price Range (INR)*
Mumbai	600 - 1200
New Delhi	700 - 1200
Bangalore	600 - 1200
Hyderabad	700 - 1200
Kolkata	600 - 1200
Pune	700 - 1200
Lucknow	700 - 1200
Noida	600 - 1200
Surat	700 - 1200
Gurugram	600 - 1200
Patna	600 - 1200
Chennai	700 - 1200
Jaipur	700 - 1200
Ahmedabad	600 - 1200

*Prices are approximate and vary depending on a specific laboratory or healthcare facility.

Summary

Overall, Dengue Test is a blood test that measures the presence of antibodies or antigens specific to the Dengue virus to diagnose and monitor Dengue infections. Also check Drlogy Test for detailed information about all medical tests for patients, doctors, scholers and medical students.

Reference

Dengue Fever - Wikipedia [1].
NS1 Antigen Test - Wikipedia [2].

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Dengue Test FAQ

What is a Dengue IgM Test?

The Dengue IgM Test is a diagnostic test used to detect the presence of IgM antibodies in the blood of individuals suspected of having a current or recent dengue infection.

IgM antibodies are produced by the immune system in response to a recent dengue infection and are usually detectable within a few days to weeks after the onset of symptoms.
This test helps in the early diagnosis of dengue and can differentiate between a current or recent infection and a past infection.

How many types of Dengue Tests are there?

There are several types of tests used for dengue diagnosis. The commonly employed tests include the NS1 antigen test, IgM antibody test, IgG antibody test, and PCR (Polymerase Chain Reaction) test. The NS1 antigen test detects the NS1 protein secreted by the dengue virus in the early stages of infection. IgM antibodies indicate recent infection, while IgG antibodies indicate past infection or previous exposure. PCR is a molecular technique that detects the genetic material of the virus. These tests are conducted using blood samples and are performed in medical laboratories or healthcare facilities. The choice of the test depends on factors such as the stage of infection, availability of resources, and the healthcare provider's recommendation. Each test plays a specific role in dengue diagnosis and provides valuable information for effective management of the disease.

What is IgM positive in Dengue Test?

A positive IgM result in a Dengue Test indicates the presence of IgM antibodies specific to the dengue virus. IgM antibodies are the first to appear during an active or recent dengue infection. Their presence suggests recent exposure to the virus. IgM positivity is an essential marker for diagnosing dengue and distinguishing it from other viral illnesses. It is important toconsult a healthcare professional for appropriate interpretation of IgM test results, as they will consider the clinical symptoms, timing, and other laboratory findings to establish an accurate diagnosis of dengue infection and guide the appropriate management plan.

What happens if a Dengue Test is positive?

If a Dengue Test, such as the NS1 antigen test, is positive, it indicates that the person has been infected with the dengue virus. The positive result suggests an active dengue infection, especially if the test is conducted in the early stages of the illness. The healthcare provider will consider the test results along with the patient's symptoms, medical history, and other laboratory findings to make a diagnosis and determine the appropriate course of treatment. Treatment for dengue primarily involves supportive care to manage symptoms and prevent complications. Patients may be advised to rest, drink plenty of fluids, and take over-the-counter pain relievers, while severe cases may require hospitalization.