Test Tuberkulin and Classification TB

In children, tuberkulin test is most useful for the examination shows are / have been infected Mikobakterium tuberkulosa and often used in "Screening TB." Effectiveness of TB infection found in the test tuberkulin is more than 90%.

People with children under the age of 1 year suffer active TB test tuberkulin positive 100%, aged 1-2 years 92%, 2-4 years 78%, 4-6 years 75%, 6-12 years of age and 51%. From the percentage can be seen that the greater the age of the children test results tuberkulin increasingly less specific.

There are several ways to do tuberkulin test, but until now Mantoux method is used more often. Location injecting Mantoux test, generally in the best part of the left arm down the front, disuntikkan intrakutan (into the skin). Rating tuberkulin test performed 48-72 hours after injecting and measured the diameter of the swelling (indurasi) happens.







TB disease is usually transmitted through the air contaminated with the bacteria Mikobakterium tuberkulosa which is released when the TB patient coughs, and the children are generally the source of infection came from people with TB adults. When these bacteria enter and often collected in the lungs will breed a lot (especially in people with the power of low body), and can be spread through blood or lymph glands. Considering that TB infection can menginfeksi almost all organs such as lungs, brain, kidney, alimentary tract, bones, lymph glands, and others, however organs most often affected the lungs.
1. Swelling (Indurasi): 0-4mm, Mantoux test negative.
The clinical meaning: there is no infection Mikobakterium tuberkulosa.
2. Swelling (Indurasi): 3-9mm, Mantoux test suspicious.
This could be due to technical errors, cross-reaction with Mikobakterium atipik or after BCG vaccination.
3. Swelling (Indurasi): ≥ 10mm, Mantoux test positive.
The clinical meaning: is or was infected Mikobakterium tuberkulosa.

Inspection radiologis can strengthen the diagnosis, because more than 95% of primary infection occurs in the lungs of the Thorax Photo regularly to be done. Mikobakterium tuberkulosa detects bacteria from the culture is a diagnostic TB positive, but not easy to find.
TB classification (according to the American Thoracic Society, 1981)
Classification 0 Never infected, there is no contact, no suffering TB
Classification I Never infected, there is a history of contact, not suffering TB
Classification II infected with the TB / test tuberkulin (+), but did not suffer tuberculosis (TB no symptoms, radiological and bacteriology not support negative).
III suffer classification Medium TB
Previously classification IV TB, but currently there is no active disease
Classification V suspected TB.

Link: http://www.medicastore.com/tbc/uji_tbc.htm