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The diagnosis of Tuberculosis (TB) involves a comprehensive approach encompassing a series of medical evaluations. Initially, a specialist doctor conducts a physical examination to assess the patient's general health; during this examination, symptoms are inquired about, the chest is auscultated, and lymph node swelling is checked.
Following the physical examination, specific methods such as the Purified Protein Derivative (PPD) skin test or blood tests are used for tuberculosis infection screening. The PPD test is administered by injecting a substance called tuberculin into the inner skin of the arm, and the size of the reaction on the skin indicates whether the person has been exposed to the tuberculosis microbe. This test measures the immune system's reaction to tuberculosis, revealing the presence of an infection. A positive PPD test result suggests that the person may have been exposed to tuberculosis bacteria.
In cases where skin or blood test results are positive, or clinical suspicion is high, additional tests are employed for a definitive diagnosis. These include:
* Imaging methods such as chest X-ray or Computed Tomography (CT) scan
* Sputum tests (for bacteriological examination and culture)
* If necessary, more advanced and specific laboratory analyses such as urine analysis, breath test, or cerebrospinal fluid test may also be included in the diagnostic process.
How is Tuberculosis (TB) Diagnosed?
Following the physical examination, specific methods such as the Purified Protein Derivative (PPD) skin test or blood tests are used for tuberculosis infection screening. The PPD test is administered by injecting a substance called tuberculin into the inner skin of the arm, and the size of the reaction on the skin indicates whether the person has been exposed to the tuberculosis microbe. This test measures the immune system's reaction to tuberculosis, revealing the presence of an infection. A positive PPD test result suggests that the person may have been exposed to tuberculosis bacteria.
In cases where skin or blood test results are positive, or clinical suspicion is high, additional tests are employed for a definitive diagnosis. These include:
* Imaging methods such as chest X-ray or Computed Tomography (CT) scan
* Sputum tests (for bacteriological examination and culture)
* If necessary, more advanced and specific laboratory analyses such as urine analysis, breath test, or cerebrospinal fluid test may also be included in the diagnostic process.