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ENTAMOEBA HISTOLYTICA - IGG TEST
Detection of past Entamoeba histolytica infection through IgG antibodies.
Sample Type
blood
Fasting Required
No
Description
Short Description: The Entamoeba histolytica IgG test is a blood test used to detect the presence of antibodies against Entamoeba histolytica, a protozoan parasite that can cause amoebiasis. The test helps identify past infections and immunity to the parasite.
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How our test process works!
Overview
- Purpose: The test is primarily used to detect past exposure to Entamoeba histolytica. The IgG antibodies are typically produced by the immune system in response to infection. This test can help confirm whether someone has been infected in the past, even if they no longer show symptoms.
- Indication: It is often used in cases where amebiasis is suspected, especially in people with a history of gastrointestinal symptoms such as diarrhea, abdominal pain, or dysentery.
Risk Assessment
- High-risk groups: People who have traveled to areas with poor sanitation or endemic regions (such as parts of Asia, Africa, and Central/South America) are at higher risk of infection.
- Transmission: Entamoeba histolytica is usually transmitted through the ingestion of contaminated food or water. People in crowded or unsanitary conditions may be more susceptible.
Normal Range
- The normal range for IgG antibodies varies slightly depending on the laboratory and the specific test kit used. Typically, a negative result is expected, which means no detectable IgG antibodies for Entamoeba histolytica. Any detectable level of IgG antibodies might be considered a positive result.
Interpretation of Results
- Positive result: A positive IgG result indicates past infection with Entamoeba histolytica. It doesn't necessarily mean the person is currently infected or symptomatic. It could suggest that the person has developed immunity after exposure.
- Negative result: A negative result typically indicates that the person has not been exposed to Entamoeba histolytica. However, it could also mean that the infection was too recent for the immune system to produce detectable levels of IgG.
- Borderline result: In some cases, the result may be inconclusive. A follow-up test or additional diagnostic methods may be necessary to confirm the presence of infection.
Sample Type
- Sample: Blood sample (serum) is used for testing. The sample is usually drawn from a vein (venipuncture).
Frequently Asked Question
The IgG test helps detect past infection with Entamoeba histolytica, the parasite that causes amoebiasis. It can be used to determine whether a person has been previously infected, even if they no longer have symptoms.
The test requires a blood sample, typically drawn from a vein in the arm. The sample is then tested for the presence of IgG antibodies specific to E. histolytica.
IgG antibodies indicate a past infection, while IgM antibodies are produced during a current or recent infection. IgG presence means the person had exposure to the parasite at some point, while IgM shows active infection.
A positive IgG result suggests that the person has been exposed to Entamoeba histolytica in the past and has developed an immune response. It does not indicate active infection, but it can suggest previous exposure or infection.
A negative result generally means that the person has not been exposed to Entamoeba histolytica, or they may not have developed a detectable immune response to the infection. However, a negative result does not rule out infection if it is a recent exposure.
No, the IgG test detects past infections. For active or current infections, an IgM test or stool examination for E. histolytica would be more appropriate.
False-positive results may occur if the person has been infected with a similar parasite, or if there is cross-reactivity with other antibodies.
False-negative results can happen if the immune system has not yet produced enough antibodies, or if the infection is too recent.
If the IgG test is positive, doctors may recommend further testing, such as stool tests, to assess for the presence of Entamoeba histolytica cysts or trophozoites and confirm whether the infection is still active. The treatment will depend on whether the infection is active and the symptoms presented.
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ENTAMOEBA HISTOLYTICA - IGG TEST
Detection of past Entamoeba histolytica infection through IgG antibodies.
Offered by other labs
Sample Type
blood
Fasting Required
No
Description
Short Description: The Entamoeba histolytica IgG test is a blood test used to detect the presence of antibodies against Entamoeba histolytica, a protozoan parasite that can cause amoebiasis. The test helps identify past infections and immunity to the parasite.
Covid Safety
Assured
Free Report
Counselling