What Is Tuberculosis (TB)?

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By amara
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6. How Is TB Diagnosed?

Two types of tests are used to determine whether a person has been infected with TB: a skin test and a blood test. A positive result for either of those only indicates that bacteria are present. The results do not reveal whether the person has active or latent TB.

To determine if someone has active tuberculosis, it is necessary to test sputum and take a chest X-ray. In addition, the doctor assesses the patient’s symptoms. A diagnosis of TB disease is made when test results and physical evaluation indicate active tuberculosis.

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