Anti TB IgG test is conducted to measure the concentration of Anti TB Antibodies called the IgG in your blood. It helps in confirming whether the patient is having tuberculosis or not. This is a standard assessment of antibodies to Mycobacterium tuberculosis in plasma or human serum. If lately, you have been experiencing unexplained weight loss, loss of appetite, sudden chills, prolonged cough, chest pain or coughing up blood, then you may be asked to undergo this test. These are few of the symptoms that trigger the presence of tuberculosis in your body. This test is conducted during the treatment to check the concentration of the antibodies and after the treatment to confirm the well-being of the patient and the recovery.