H. Pylori Antibody IgG Test
About H. Pylori Antibody IgG Test
| Field | Value |
|---|---|
| Also Known As | H. Pylori IgG Antibody Test, Anti-H. Pylori IgG Test, Helicobacter Pylori Antibody IgG Test, H. Pylori Serology Test |
| Sample Type | Serum (venous blood) |
| Fasting Required | No fasting required |
| Report Time | 3 days |
| Recommended For | Adults and children of all ages with gastrointestinal symptoms |
| Price | Starting at ₹950 |
What Is an H. Pylori Antibody IgG Test?
The H. Pylori Antibody IgG test is a blood test that checks whether your immune system has produced IgG antibodies (proteins made to fight infection) in response to a bacterium called Helicobacter pylori.
Doctors prescribe it when a patient reports persistent stomach pain, indigestion, or related digestive symptoms. It is also known as the H. Pylori IgG Antibody test or the H. Pylori Serology test. A small blood sample drawn from a vein in your arm is used for the test.
What Does an H. Pylori Antibody IgG Test Measure?
The test analyses your blood for specific immune proteins linked to H. pylori exposure. The table below explains what is detected and why it matters.
| Component | What It Tells You |
|---|---|
| IgG Antibodies to H. pylori | Shows whether your immune system has encountered H. pylori, either currently or in the past |
| Immune Response Level | Indicates the strength of the antibody response; however, a positive result cannot distinguish between a current and a past infection |
Why Is an H. Pylori Antibody IgG Test Done?
Doctors request this test when a patient's symptoms point to a possible H. pylori infection. It helps identify the likely cause of persistent digestive complaints.
Common Symptoms That May Require This Test
The following symptoms are the most common reasons a doctor may recommend the H. Pylori Antibody IgG test:
- Burning pain or tenderness in the abdomen
- Recurrent or unexplained stomach pain
- Persistent nausea or indigestion
- A feeling of fullness even after small meals
- Unexplained weight loss
- Bloating after eating
- Signs of intestinal bleeding, such as dark or tarry stools
Conditions This Test Can Help Detect
This test can support the diagnosis of the following conditions:
- Gastritis (inflammation of the stomach lining)
- Peptic ulcers (sores in the stomach or the first part of the small intestine)
- Duodenal ulcers (sores in the duodenum, the upper portion of the small intestine)
- Gastric cancer (stomach cancer) in the context of long-term H. pylori infection
- MALT lymphoma (a rare type of stomach lymphoma linked to H. pylori)
- Chronic gastritis (ongoing stomach inflammation)
How to Prepare and What to Expect
Preparing for this test is straightforward. No special steps are needed beforehand, though a few simple precautions help make the process easier.
Do You Need to Fast?
No, fasting is not required for the H. Pylori Antibody IgG test. You can eat and drink as you normally would before your appointment. If your doctor has ordered additional tests alongside this one, check separately whether those require fasting.
Practical Tips Before Your Test
Keep the following in mind before your sample is collected:
- Bring a detailed clinical history including your symptoms, previous test results, and relevant medical records, as this is required for the test
- Inform the phlebotomist (the person drawing your blood) about any medications you are currently taking, as some can affect results
- Stay well hydrated beforehand, as this makes the veins easier to access
- Wear a top with loose or short sleeves for easy access to your arm
- Let the phlebotomist know if you have any bleeding disorders or allergies
Step-by-Step Procedure
- You will sit comfortably while the phlebotomist cleans the area around your elbow with an antiseptic solution
- An elastic band (tourniquet) is wrapped around your upper arm to make the veins more visible
- A small needle is used to draw blood from a vein in your arm into a serum separator tube
- Once enough blood has been collected, the needle is removed and a small bandage is placed over the puncture site
- The sample is labelled and stored at the appropriate refrigerated temperature for transport to the laboratory
- In the lab, the sample is tested using an enzyme immunoassay (EIA) method to detect IgG antibodies against H. pylori
Factors That Can Affect Accuracy
Several factors can influence the reliability of results:
- A weakened immune system (immunocompromised state), which can reduce the body's antibody response
- The density of H. pylori in the stomach and the severity of any existing gastritis
- Hemolysed (damaged) blood samples, which are not acceptable for this test
- Early-stage infection, where antibodies may not yet have reached detectable levels
Understanding Your H. Pylori Antibody IgG Results
Results should always be reviewed with your doctor, who will consider them alongside your symptoms and medical history. The table below shows general reference ranges used by many laboratories.
| Result | Index Value | What It May Suggest |
|---|---|---|
| Negative | Less than 0.75 | No detected antibodies; H. pylori exposure unlikely |
| Equivocal | 0.75 to 0.99 | Borderline result; repeat testing or additional tests may be needed |
| Positive | 1.0 or above | Antibodies detected; past or current H. pylori exposure |
These ranges are general guidelines and may vary by laboratory. 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 circumstances can make results harder to interpret:
- IgG antibodies can remain in the blood for months or even years after successful treatment. A positive result after treatment does not confirm an ongoing infection. Stool antigen or urea breath tests are preferred for checking whether treatment has worked.
- Patients with a weakened immune system may produce fewer antibodies than expected, which could lead to a falsely negative result.
How to Maintain Digestive Health
These general wellness tips support good digestive health:
- Practise regular hand washing and follow safe food-handling practices to reduce the risk of H. pylori transmission
- Avoid sharing utensils or drinking glasses, and consume clean, treated water
- If H. pylori is detected and treatment is prescribed, complete the full course as directed by your doctor
Lupin Diagnostics H. Pylori Antibody IgG Price and Home Collection
The H. Pylori Antibody IgG test is available at Lupin Diagnostics starting at ₹950, with home sample collection available across cities. The table below lists approximate prices in major Indian cities.
| City | Approximate Price (₹) |
|---|---|
| BHOPAL | 950 |
| CHENNAI | 950 |
| HYDERABAD | 950 |
| KOLKATA | 1800 |
| NAVI MUMBAI | 950 |
| PUNE | 1800 |
Prices are indicative and may vary by location. Please confirm the current price at the time of booking.
How to Book
- 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
The H. Pylori Antibody IgG test home collection service is available across major Indian cities. A certified phlebotomist will visit your home at a time that suits you to collect the blood sample. All samples are processed in NABL-accredited laboratories, and digital reports are accessible once ready.
Frequently Asked Questions
The H. Pylori Antibody IgG test detects IgG antibodies that your immune system produces in response to a bacterium called H. pylori. It shows whether your body has been exposed to this bacterium, but it cannot tell your doctor whether the infection is current or from the past.
No, this test cannot confirm active infection on its own. IgG antibodies can remain in the blood for months or years even after the infection has cleared. Your doctor may recommend a stool antigen test or urea breath test to check for a current, active infection.
No fasting is needed. You can eat and drink normally before the test. Simply follow any other instructions your doctor has given you.
Because IgG antibodies can reflect either a past or current infection, your clinical history, including your symptoms, duration of discomfort, and any prior treatment, helps the doctor interpret your result accurately. Please bring relevant medical records or a summary of your symptoms to your appointment.
No. IgG antibody levels can stay elevated for a long time after successful treatment, making this test unreliable for confirming eradication. Stool antigen tests or urea breath tests are the preferred methods for checking whether H. pylori has been cleared.
If you have been experiencing persistent indigestion, stomach pain, nausea, unexplained weight loss, or a feeling of fullness for several weeks, speak to your doctor. They will assess your symptoms and decide whether this test is appropriate for you.
Reports for the H. Pylori Antibody IgG test are generally available within 3 days of sample collection. You will receive your report digitally via email or WhatsApp once it is ready.
H. Pylori Antibody IgG Test
