Description
Serum, Immunoglobulin G (IgG) also known as antibody, is a glycoprotein produced by white blood cells. It is a crucial aspect of our immune response system as it specifically identifies and binds to antigens such as viruses and bacteria and aid in their destruction. IgG is a major class of immunoglobulin that provides primary protection against local and systemic infections of the lower respiratory tract. IgG test measures the level of immunoglobulin G in the blood. Analyzing IgG provides valuable insight into the highly complex humoral immune response. During the initial infection or antigen exposure, specific IgG antibodies are formed, which increase a few weeks later, then decrease and stabilise., Non Fasting
Sample Required:
The Immunoglobulin IgG test typically requires a blood sample. A healthcare provider will use a needle to draw a small amount of blood from a vein, usually in the arm.
Test Time:
The test is usually processed within a few hours to a day after the blood sample is collected. Results are typically available shortly after processing.
Test Normal Range:
The normal range for Immunoglobulin IgG can vary depending on the laboratory that performs the test. In general, normal values for IgG levels in adults are around 700 to 1,600 milligrams per deciliter (mg/dL).
What is the Test?
The Immunoglobulin IgG test measures the concentration of Immunoglobulin G in the blood. IgG is a type of antibody that plays a key role in the immune system’s defense against infections. It is the most abundant type of antibody in the bloodstream.
Test Procedure:
A healthcare provider will clean the skin over a vein, usually in the arm. A needle and a syringe or a vacuum tube will be used to collect a blood sample. The blood sample is then sent to a laboratory for analysis. In the laboratory, specialized equipment is used to measure the concentration of IgG in the blood.
When to Take the Test:
The Immunoglobulin IgG test may be ordered when a healthcare provider suspects an immunodeficiency disorder, autoimmune disease, chronic infections, or certain inflammatory conditions.
Who Should Take This Test:
This test is typically ordered by a healthcare provider based on a patient’s medical history, symptoms, or suspected conditions. It may be recommended for individuals with recurrent infections, suspected autoimmune disorders, or chronic inflammatory conditions.
Precautions for Exceptional Cases:
There are generally no specific precautions for taking the Immunoglobulin IgG test during pregnancy. However, pregnant individuals should inform their healthcare provider of their pregnancy, as some medical conditions related to pregnancy might affect IgG levels.
FAQs (Frequently Asked Questions):
Q1: What does a low IgG level indicate?
A: A low IgG level can be associated with immunodeficiency disorders, making individuals more susceptible to infections.
Q2: What causes elevated IgG levels?
A: Elevated IgG levels can result from chronic infections, autoimmune diseases, certain cancers, or inflammatory conditions.
Q3: Can the IgG test diagnose specific diseases?
A: The IgG test is not a diagnostic test for specific diseases, but it can provide valuable information to aid in the diagnosis and management of various medical conditions, especially those related to the immune system.
Q4: Are there any risks associated with the IgG test?
A: The IgG test is generally considered safe, with minimal risks. Some individuals may experience mild discomfort or bruising at the site of the blood draw.
Q5: Can the IgG test detect past infections?
A: Yes, the IgG test can detect antibodies that remain in the bloodstream after an infection has resolved, which can help determine past exposure to certain infectious agents.
