What is Anti Tb Ab - IgA, IgG, IgM?
Serum based ELISA tests is used to detect the three types of antibodies IgG, IgA, IgM IgG antibodies appear when an infection becomes established. They indicate a good immunological response of the patient to the infection. IgG and IgM are analyzed together to detect reactivation cases in chronic infections. A successful therapy, noted by clinical signs and the negative culture, is often accompanied by an increase in IgG antibodies titers, followed of course by a decrease in IgG at the end of the therapy. IgA antibodies are applied in difficult cases presenting a lack of tuberculin reactivity. IgA antibodies strengthen the diagnosis in cases of suspected meningitis, pleuritis, pericarditis and AIDS syndrome
Purpose of Test
To Detect Tuberculosis.
Test of Result Interpretation
- IgG: Adult: Equivocal 125.0 - 225.0, Negative: 0.0 - 125, Positive: > 225.0 U/ml
- IgA: Negative: Upto 200, Borderline: 201 - 350, Positive: > 350 U/ml
- IgM: Negative: < 0.8, Borderline: 0.8 - 1.0, Positive: > 1.0 OD.
No preparation required can collect the blood sample at any time.