Value of PPD test and serum antibody in the diagnosis of tuberculosis

Objective To evaluated the value of tuberculosis antibody test and PPD test in the diagnosis of tuberculosis.Methods 200 cases with pulmonary tuberculosis and 100 cases with other diseases were selected;all patients detect serum tuberculosis antibody and PPD.Results 166 TB patients who adopt with tuberculosis antibody detection appeared positive reaction,170 cases appeared positive reaction during PPD test.the results were no significant differences in positive reaction rate.The sensitivity of serum tuberculosis antibody and PPD test in TB patients is 83% and 85%,respectively.The positive rate of the combination of serum tuberculosis antibody and PPD test in tuberculosis group was 82%,while the negative rate was 84%.Conclusion Serum tuberculosis antibody detection and PPD test are convenient,peculiar,sensitive and quick in the diagnosis of tuberculosis,when the combination of both is performed,the value of them in clinical tuberculosis diagnosis will increases more.