Immunological Investigation

Overview of the test

Immunoglobulins are biochemical compounds found in the blood. These molecules determine our body's response towards diseases and the development of an infection. Immunological investigations are required for multiple reasons. These immunoglobulin tests check for the level of different immunoglobulins in the blood. Doctors determine immunity levels and blood composition depending on the molecular level and antibodies present in the blood.

About the test

Immunological blood tests or investigations employ different probe proteins and other molecules like antigens to detect antibody levels in the blood. The blood tests also ensure that there are no abnormalities in blood composition and the immune system. Autoimmune disorders and other immunodeficiency syndromes are also detected with the help of immunological investigations. Even before IVF cycles and any kind of major procedures, the doctor goes for these blood tests.

Preparing for the test

The test only needs a blood sample. Therefore, you do not have to prepare a lot. The laboratory takes care of all the preparations for you. The sample collection process lasts for only 5 minutes. Prepare for a little prickling sensation and slight pain when the sample gets collected.

What to expect from the test

A laboratory professional collects the blood sample with the help of a sterile syringe. The blood is collected in vials. The laboratory stores blood samples and tests the samples for antibodies and antigens. The levels of IgA, IgG and IgM antibodies in the blood are checked in the test. Do not expect all the antibodies to have the same level in the report. Antibody levels fluctuate depending on the current state of the body.

Possible results of the test

Some results of immunological tests on blood samples may throw up worrying results. For example, one of the immunoglobulins may have low levels. With the help of symptoms, you can interpret the results. The immunoglobulin levels, symptoms and probable causes help diagnose the presence of a disease in your body. A low level of any immunoglobulin can be a sign of anything as complicated as kidney disease or as simple as malnutrition. You need further tests after immunological investigations for confirmation of a disease condition.

Risk factors associated with the test

There are very few risks associated with immunological investigations. The test mostly uses blood serum samples, and syringes and injections are used to collect blood samples. Therefore, the procedure is minimally invasive. The syringes should be very clean and sterile to ensure no infections. Some bruising and pain might occur during blood sample collection.

When to see a doctor

Immunoglobulin factors also contribute to infertility in humans. For many people, some diseases lead to infertility. Before a couple goes for IVF, a fertility expert requests a proper immunological investigation of the partners. This unearths the current diseases and any chronic conditions present in the body. After this, the doctor suggests approaches to ensure that the to-be parents are completely healthy and fertile before they begin the process of IVF. Immunological tests are common in all laboratories in India. The most detailed tests happen at Apollo Fertility.

You can request an appointment at Apollo Fertility, Karapakkam, Chennai or Call 1860-500-4424 to book a doctor's appointment today for a thorough immunological investigation. 


Immunological investigations of the blood work towards better treatment and prevention of many health issues. It is one of the basic investigations that doctors make before the IVF process and its result. Immunological factors determine the direction and success of the IVF process. These investigations also help other individuals who suspect the development of diseases. Fluctuating levels of antibodies are common because the human body is hardly in its ideal state of health ever. Make sure to choose the best lab, like Apollo Fertility, for the detection of immunological issues.

1. What are the techniques of immunological investigations?

There are several techniques like enzyme-linked immunosorbent assay, western blotting, immunofluorescence assay, and hemagglutination inhibition assay that count as immunological investigations.

2. What is the most common type of immunological test performed?

The most common type of immunological test is the erythrocyte sedimentation rate and measurement of the C-reactive protein test.

3. What all conditions can the immunoglobulin test detect?

Any immune system issue, like an autoimmune disorder, is detected with the help of immunological investigations.

4. What does the high level of IgG mean?

A high level of IgG means that the immunity system has been infected for many months and the infection is old.

5. What are the two types of immunity that you have?

The two types of immunity you have are active and passive immunity.

Book an Appointment




Ovulation Calculator