Knowing the patient’s health history

In the beginning, you must know the symptoms that the patient suffers from, and ask about the presence of factors that may increase the risk of tuberculosis; Such as age, race, and occupation, in addition to knowing whether the patient suffers from certain health problems; Such as HIV infection, as it increases the risk of developing tuberculosis.[1]

Clinical examination

The clinical examination can provide important information about the general condition of the patient, and the presence of any other factors that may affect the way tuberculosis is treated.[1]

tuberculosis infection tests

After obtaining the patient’s health history, and conducting the necessary clinical examination for him, the following tests are performed:[2][3]

  • Tuberculin skin test: The test involves injecting tuberculin into the skin; It is a substance extracted from the dead mycobacteria that cause the disease, and after about 48-72 hours the skin is examined, where the presence of swelling or swelling in the injection area is considered a positive result, and indicates that the patient was either exposed to live mycobacteria, or that he has tuberculosis infection. active, or that he received a vaccine against tuberculosis, but in the absence of any swelling in the skin, this means that the result is negative and the person does not have tuberculosis, except in the case of immunodeficiency, the negative result may be false, and therefore it is necessary to resort to Use of other tests to diagnose disease.
  • Blood tests: There are many different blood tests used to confirm or rule out latent or active tuberculosis; It uses advanced technology to measure the immune system’s reaction to tuberculosis bacteria.
  • Sputum test: The doctor may take samples of the sputum that appears when coughing, and these samples are examined to detect the presence of tuberculosis bacteria in them, and they can also be used to test for strains that are resistant to tuberculosis drugs, so that they help the doctor choose the drugs that may work best.

Imaging tests

The doctor performs an x-ray or computed tomography scan of the victim’s chest, to notice the appearance of white spots in the lungs, or the presence of changes in the lungs due to active tuberculosis, and it is worth noting that the CT scan provides more detailed images than X-rays.[3]

the reviewer

  1. ^ a b “Diagnosis of Tuberculosis Disease”,, Retrieved 19-1-2019.
  2. ↑ Charles Patrick Davis, MD, PhD (8-1-2019), “Tuberculosis (TB)”,, Retrieved 19-1-2019. Edited.
  3. ^ AP Mayo Clinic Staff (4-1-2018), “Tuberculosis Diagnosis & treatment”,, Retrieved 19-1-2019. Edited.

TB diagnosis

Writing – on the date : – Last updated: 2022-05-13 10:27:01