22/12/14

What causes tuberculosis?

 Grandparents old adage of "Lao Feng shrink from them incurable" to speak of the dangers of tuberculosis.

People also know that tuberculosis is a disease that is very contagious and common disease. When medical examination and chest x-ray or illuminated glass, patients with TB often hear doctors said was burnt lungs so it is often referred to as melasma pulmonary tuberculosis.
Tuberculosis is the name makes it easy when it comes to fear and lung disease, people are more likely to think of the TB.
  - Tuberculosis is a bacterial disease, spread mainly by inhalation, ie inhalation on pulmonary TB. The disease is transmitted from person to person. The bacteria that causes TB bacilli is the scientific name Mycobacterium tuberculosis. Tuberculosis is not hereditary.
- TB bacilli in the soil; TB storage mainly in patients with pulmonary tuberculosis. These patients often have "hang workers", ie suspended in the lungs, which contain a lot of TB. An employee hang 2 cm in diameter contains about 100 million bacteria.
 

  How is TB spread?

- When tuberculosis patients say, especially when you cough or sneeze, they will shoot out around the county thousands of small talk, the particles contain a number of TB: the small particles to infect. Number of Droplets around very large patient when the patient coughs (3500) or sneezing (1,000,000). When exposed to air, surface particles will gradually dry and become very light particles containing tuberculosis bacteria are alive suspended in the air for some time. In confined places, these particles are suspended in the air longer and germs can live for hours in the dark.
- The direct light of the sun destroys TB germs quickly. Therefore, ventilation and exposure where tuberculosis patients live can reduce the risk of infection for those living in contact with them.
- So who live near or sleep near the patient at risk for inhaling small particles infect. Higher risk of exposure to more intimate connection with the density of bacteria in the air. Thus the two main factors determining risk for TB transmission is a good man: the concentration of small particles suspended contaminate the air, and the time that people breathe air that is. I easily understand that a large proportion of children living near the source of infection to TB infection. Children of mothers who are coughing up germs spread most at risk.
- Patients with positive bacteria through direct inspiration (visible by microscope) is spread more because they cough up more bacteria than those who have just discovered the bacteria in culture.

  "TB infection" is different from "tuberculosis" What?

When TB germs from entering the body is called TB. In areas with high TB ​​situation, most young people are already infected with TB, but only a small percentage of them have TB. The ability to become infected with tuberculosis TB depends on two factors:
- The level of contamination, ie the number of bacteria inhaled, more or less.
- Resistance of the body.
After entering the lungs, tuberculosis bacteria will multiply and follow the blood, lymphatic spread throughout the body. Usually, the immune system of our body will stop and destroy them, just as the tuberculosis In some cases, TB can develop quickly into tuberculosis. In some other cases, the bacteria lying dormant in the system caused by the body's protective inhibition. When protecting the body's strength is weakened, for example due to malnutrition, HIV infection, aging, sleep TB bacteria can breed and cause tuberculosis. Now people become infected with TB TB patients.

TB if not detected early treatment can lead to serious complications for?

Tuberculosis has many complications. Complications can occur as clinical introduction, ie complications and discovered disease, or occur during the progression of the disease. The most common complications are:
1. Coughing up blood: can small, medium or more. Coughing up blood lightning, due to tuberculosis as necrosis of an artery, a complication fatal within minutes.
2. pneumothorax: a cave by breaking labor in the pleural cavity, the severe complications. The germs of tuberculosis infection in the pleural hang and cause overflow pus - pneumothorax. Treatment difficult, both for TB, moderate pleural catheter.
3. pleural effusion: access to a drive by tuberculosis is progressing
Complications can occur after tuberculosis has been cured to form the sequelae of tuberculosis:
4. bronchodilator: talks with cough and hemoptysis. Make no mistake that relapse. Only to find new TB recurrence.
5. Chronic Respiratory Failure: when sequelae spread as lung dysfunction.
6. pneumothorax: a break from the bubbles. Emphysema is not accompanied by pleural infection.
7. U fungal lung: Aspergillus fumigatus fungal proliferation in an old cave in pulmonary tuberculosis. Treatment with surgery.
 

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