SEARCHED TERM
Tuberculin skin test (TST) reaction
DEFINITION
Induration > 5mm for individuals who are at great risk of developing tuberculosis if they become infected with M. tuberculosis. Induration > 10 mm for individuals who have normal or mildly impaired immunity and a high likelihood of being infected with M. tuberculosis but are without other risk factors that would increase their likelihood of developing the disease. Induration >15 mm for individuals with no risk factors for tuberculosis. These cut-offs might be modified depending on the clinical setting or for research purposes.
RELATED TERMS
MORE INFO
SOURCE DEFINITION
Induration > 5mm for individuals who are at great risk of developing tuberculosis disease if they become infected with M. tuberculosis. Induration > 10 mm for individuals who have normal or mildly impaired immunity and a high likelihood of being infected with M. tuberculosis but are without other risk factors that would increase their likelihood of developing active disease. Induration >15 mm for individuals with no risk factors for TB
OTHER DEFINITIONS
Person who shows a definite positive reaction when tuberculin-tested by a recognised method. A definite positive tuberculin reaction in a person who has not been vaccinated usually indicates that this person is infected by tubercle bacilli
Induration > 5mm for individuals who are at great risk of developing tuberculosis disease if they become infected with M. tuberculosis. Induration > 10 mm for individuals who have normal or mildly impaired immunity and a high likelihood of being infected with M. tuberculosis but are without other risk factors that would increase their likelihood of developing active disease. Induration >15 mm for individuals with no risk factors for TB
CLOSE
