Tuberculosis (patient information): Difference between revisions
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==What to do if you think you, or a | ==What to do if you think you have Tuberculosis== | ||
Latent Tuberculosis can be detected about 6-8 weeks after exposure. A common test is a skin test, where substance called PPD, is injected underneath the forearm. If a red welt forms at the injection site, they may have Latent or Active TB. Latent TB is sometimes called PPD-positive. | |||
Diagnosing active TB can be done with a combination of symptoms, patient history (any known exposure to TB), and x-rays. X-rays of the lungs often show can show cavities or legions that are typical of TB. | |||
==How is Tuberculosis spread?== | ==How is Tuberculosis spread?== | ||
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What is Tuberculosis?
Tuberculosis, or TB is a bacterial infection that kills 3 million people worldwide, more people than any other infection in the world. Approximately one-third of the world is infected, and 15 million people in the US. Active tuberculosis kills 60% of the time if not treated, but treatment cures 90% of patients.
Most people are infected with TB have latent TB. This means that the bacteria is controlled by the body's immune system. People with latent TB do not have symptoms and cannot transmit TB to other people. However, later if the infected person has a weakened immune system, from AIDS or another infection, the bacteria can break out leading to active TB.
What are the symptoms of Tuberculosis?
Latent TB is held in the alveoli of the lungs. As active TB develops, the bacteria spreads out from the alveoli to the lungs and then to other organ systems, killing cells and making granulomas. As a result, depending on what organ system is affected, the symptoms can be very different. Some symptoms of early active TB include:
- weight loss
- fever
- night sweats
- loss of appetite
What to do if you think you have Tuberculosis
Latent Tuberculosis can be detected about 6-8 weeks after exposure. A common test is a skin test, where substance called PPD, is injected underneath the forearm. If a red welt forms at the injection site, they may have Latent or Active TB. Latent TB is sometimes called PPD-positive.
Diagnosing active TB can be done with a combination of symptoms, patient history (any known exposure to TB), and x-rays. X-rays of the lungs often show can show cavities or legions that are typical of TB.
How is Tuberculosis spread?
Tuberculosis is spread from person to person through the air as person with active tuberculosis coughs or sneezes. Tuberculosis is not often spread on surfaces or by objects of a person infected with active tuberculosis.
Diseases with similar symptoms
Where to find medical care for Tuberculosis
Directions to Hospitals Treating Tuberculosis