Toxoplasma IgG (Toxo IgG) Test: Booking, Price, and Results
About Toxoplasma IgG (Toxo IgG) Test: Booking, Price, and Results
| Field | Value |
|---|---|
| Also Known As | Toxoplasma gondii IgG Antibody Test, Toxoplasmosis IgG Antibody Test |
| Sample Type | Venous blood (serum) |
| Fasting Required | No fasting required |
| Report Time | Within 36 hours |
| Recommended For | All genders and ages; especially pregnant women, immunocompromised individuals, and those with symptoms of toxoplasmosis |
| Price | Starting at ₹550 |
What Is a Toxoplasma IgG (Toxo IgG) Test?
The toxoplasma IgG (Toxo IgG) test is a blood test that checks for IgG antibodies against Toxoplasma gondii, a parasite that can infect humans. IgG antibodies appear in the blood several weeks after exposure and remain detectable for life, signalling past or present infection. Also known as the Toxoplasma gondii IgG antibody test or toxoplasmosis IgG antibody test, it is commonly prescribed for pregnant women, people with weakened immune systems, and individuals showing symptoms suggestive of toxoplasmosis. A venous blood (serum) sample is used for this test.
What Does a Toxoplasma IgG (Toxo IgG) Test Measure?
This test detects and measures the level of IgG antibodies that the body produces in response to a Toxoplasma gondii infection. The table below explains what the result indicates:
| Parameter | What It Tells You |
|---|---|
| Toxoplasma IgG antibody level | Whether you have been exposed to T. gondii at any point, and whether your immune system has built a measurable response to the parasite IgG antibody levels rise during an active infection, then stabilise once the infection resolves and the parasite becomes inactive. A person who has ever been infected will carry detectable IgG for the rest of their life and is generally considered immune to re-infection. |
Why Is a Toxoplasma IgG (Toxo IgG) Test Done?
Doctors order this test to check for past or current exposure to Toxoplasma gondii in people who display certain symptoms or belong to at-risk groups.
Common Symptoms That May Require This Test
The following symptoms may prompt a doctor to order a toxoplasmosis IgG antibody test:
- Swollen lymph nodes (small glands, usually in the neck)
- Persistent fever
- A general feeling of being unwell
- Flu-like symptoms, including muscle aches
- Sore throat
- Blurred vision or eye pain
- Fatigue lasting several weeks
Conditions This Test Can Help Detect
A toxoplasma IgG (Toxo IgG) test can help identify the following conditions:
- Past or current Toxoplasma gondii infection
- Ocular toxoplasmosis (eye infection caused by the parasite)
- Congenital toxoplasmosis in newborns exposed to the parasite in the womb
- Central nervous system toxoplasmosis, the most common brain infection in people with HIV/AIDS who are not on preventive medication
- Latent (dormant) infection that may reactivate in immunocompromised individuals
Toxoplasma IgG (Toxo IgG) Test During Pregnancy
Primary Toxoplasma gondii infection during pregnancy can lead to congenital toxoplasmosis in the unborn child. Early-pregnancy infection carries a greater risk of severe outcomes, including brain damage and eye and organ disorders in the foetus, even though transmission rates are lower early on. The absence of IgG antibodies before or in early pregnancy helps identify women who are not immune and are at risk of acquiring the infection. Doctors use this test alongside IgM testing to distinguish between a recent and a past infection.
Toxoplasma IgG (Toxo IgG) Test for Chronic Disease Monitoring
For people living with HIV, early identification of T. gondii antibodies is important to prevent serious complications such as cerebral toxoplasmosis. In HIV-positive individuals with a CD4 count below 100 who are not receiving appropriate preventive treatment, the chance of developing reactivated toxoplasmosis can be as high as 30%. This test is used to monitor risk and guide decisions about preventive treatment.
How to Prepare and What to Expect
No special preparation is needed for the toxoplasmosis IgG antibody test, but a few simple steps will make the experience straightforward.
Do You Need to Fast?
No, fasting is not required. You can eat and drink normally before giving your blood sample. Always follow the specific instructions given by your doctor or laboratory.
Practical Tips Before Your Test
The following tips will help the process go smoothly:
- Tell your doctor about all prescription or over-the-counter medicines, and supplements you are currently taking
- Inform your doctor if you are pregnant or have recently handled cat litter or raw or undercooked meat
- Drink adequate water before your appointment to keep veins visible and accessible
- Wear a short-sleeved or loose-sleeved top for easy access to the arm
Step-by-Step Procedure
Here is what happens during a standard blood collection for this test:
- A trained phlebotomist (blood collection professional) cleans the inner arm with an antiseptic swab.
- An elastic band (tourniquet) is tied around the upper arm to make the veins stand out.
- A small needle is gently inserted into a visible vein, and blood is drawn into a collection tube.
- The needle is removed, and a small bandage or cotton swab is pressed on the puncture point.
- The blood sample is labelled and dispatched to the laboratory for analysis.
Factors That Can Affect Accuracy
The following factors may influence the reliability of your results:
- Testing very early after infection may yield a negative result even if infection is present, as IgG takes several weeks to appear
- Immunocompromised individuals may produce lower-than-expected antibody levels, making detection harder
- In infants under six months, IgG detected may reflect antibodies passed from the mother, not the infant's own response
- A blood sample with a high fat content or damaged red blood cells (haemolysed sample) is not suitable for testing
Understanding Your Toxoplasma IgG (Toxo IgG) Test Results
Results should always be reviewed alongside your clinical history. The table below shows the standard reference ranges used for interpreting the Toxoplasma gondii IgG antibody test:
| Reference Range of IgG Antibody (IU/mL) | Interpretation | Remarks |
|---|---|---|
| < 7.20 | Non-reactive | No IgG antibody detected |
| 7.20 – 8.80 | Equivocal | Retesting advised |
| > 8.80 | Reactive | IgG antibody detected |
These ranges are general guidelines. Your doctor will interpret your results based on your age, health history, and other factors. Always consult a qualified healthcare professional for personalised medical advice.
Results During Special Conditions
Certain health conditions can alter how results appear. Your doctor should be aware of the following:
- People with weakened immune systems (such as those with HIV or AIDS) may show only a slight IgG rise, and IgM results may be negative, even during an active infection.
- In infants younger than six months, a positive IgG result usually reflects maternal antibodies passed through the placenta, not the infant's own infection. An IgM test is more appropriate in this age group.
How to Maintain Healthy Levels
The following general habits can reduce the risk of Toxoplasma gondii exposure:
- Cook meat thoroughly, especially lamb, pork, and venison, before eating
- Wash hands carefully after handling raw meat, gardening, or cleaning cat litter
- Rinse fruits and vegetables well under clean running water before consuming them
Lupin Diagnostics Toxoplasma IgG (Toxo IgG) Test Price and Home Collection
The toxoplasma IgG (Toxo IgG) test price starts at approximately ₹550 and varies by city. Home sample collection is available across major Indian cities. The table below gives an approximate city-wise price guide:
| City | Approximate Price (₹) |
|---|---|
| Bengaluru | ₹550 |
| Mumbai | ₹550 |
| Chennai | ₹550 |
| Hyderabad | ₹550 |
| Kolkata | ₹550 |
| Pune | ₹550 |
Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
Follow these steps to book your test:
- Select the test on the Lupin Diagnostics website.
- Choose your city and preferred time slot.
- Opt for home sample collection by a certified phlebotomist, or visit your nearest Lupin Diagnostics centre.
- Receive your report via email or WhatsApp within the stipulated turnaround time.
Home Collection
Lupin Diagnostics offers home sample collection for the toxoplasma IgG (Toxo IgG) test across cities in India. All samples are processed in NABL-accredited laboratories by trained technologists. Digital reports are delivered directly to you via email or WhatsApp once ready.
Frequently Asked Questions
The toxoplasma IgG (Toxo IgG) test detects IgG antibodies against Toxoplasma gondii in your blood. It helps determine whether you have been exposed to this parasite in the past or currently carry immunity against it. Doctors use it to assess infection risk in pregnant women, immunocompromised patients, and symptomatic individuals.
IgM antibodies are produced first, usually within one to two weeks of initial exposure to T. gondii. IgG antibodies appear several weeks later and remain in the blood for life, indicating past exposure and long-term immunity. Together, both tests give a clearer picture of whether an infection is recent or old.
No fasting is needed. You can eat and drink as normal on the day of your toxoplasmosis antibody test. Always follow the specific instructions provided by your doctor or laboratory.
If a pregnant woman acquires a primary T. gondii infection, the parasite can cross the placenta and infect the unborn baby. This can result in serious complications, including brain damage, eye problems, and organ damage in the foetus. Testing helps identify whether a woman is immune before or early in pregnancy.
Infection typically occurs through eating undercooked or raw meat (especially lamb, pork, or venison), handling cat litter or contaminated soil, or consuming food or water contaminated by the parasite. Good hygiene and food safety practices significantly reduce the risk of exposure.
A positive result means IgG antibodies against Toxoplasma gondii have been detected. This indicates that you were infected at some point in the past and now carry long-term immunity. A single positive IgG result alone is not enough to diagnose a recent or active infection. Your doctor may order additional tests to find out more.
HIV weakens the immune system, which can allow a previously inactive T. gondii infection to reactivate and cause serious complications, particularly in the brain. All HIV-positive individuals are generally tested for Toxoplasma gondii antibodies so that those at risk can be considered for preventive treatment before complications develop.
Toxoplasma IgG (Toxo IgG) Test: Booking, Price, and Results
