Normal negative tb test pictures skin#

The doctor recommends a tuberculin skin test or blood test when there are symptoms of active TB infection or the possibility of getting infected. Who should be screened for Tuberculin Skin Test ? Hence if the test result is a positive TB skin test, the doctor goes for a chest X-Ray, CT scan, and sputum test that will help them to learn the type of the disease. The tuberculin skin test allows the doctor to understand whether the person is infected by TB, but it will not provide enough evidence to understand whether TB is in the latent or active stage. The tuberculin skin test allows the doctor to understand if the person has TB. The test is also for those who feel difficulty visiting for a second appointment. On the other hand, a TB blood test is preferred for those who have been injected with the TB vaccine Bacille Calmette-Guerin (BCG). The tuberculin skin test is recommended to test children under age 5. It is also known as the tuberculin test or Mantoux test, whereas the TB blood test is called Interferon-Gamma Release Assay (IGRA). The tuberculin skin test is mainly used to test Latent TB cases. In this case, the infection is contagious, and the disease can also spread to other persons. If the immune system can't restrict TB bacteria from growing, it will become active, multiply and make the person sick. If the person is suffering from other health diseases like HIV, there are high chances of Latent TB turning into active TB. But the germs are still alive and can become contagious one day. There won't be any visible sign of this infection, and it is not contagious. In this case, the germs will be present in the body, but the immune system restricts them from spreading. There are two types of TB, Latent and Active TB. What is a TB (tuberculosis) or Tuberculin Skin Test?Īs already discussed, the tuberculin skin test helps to identify whether a person's immune system responded to Mycobacterium. Read further to know more about the tuberculin skin test. The blood test is not frequently suggested. The TB skin test is commonly preferred, but it may not suit everyone. The doctor prescribes a tuberculin skin test or a tuberculosis blood test to expose the bacterial attack. The Tuberculin Skin test analyses if the person is infected by tuberculosis.

It can be resisted if you have a strong immune system.It is caused by a contagious bacteria called Mycobacterium tuberculosis.

Tuberculosis is a contagious infection that normally attacks the lungs and later spreads to other body organs and brain.