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Further Questions on this Topic ( 18 Questions)
This is an incorrect answer because an induration of 5 mm or more is considered a positive reaction only for certain high-risk groups, such as people who are HIV-positive, have recent contact with a person with active tuberculosis, or have chest radiograph findings consistent with prior tuberculosis.
This is a correct answer because an induration of 10 mm or more is considered a positive reaction for most people, including those who are recent immigrants from high-prevalence countries, injection drug users, residents or employees of high-risk settings, children younger than 4 years old, or people with certain medical conditions that increase the risk of tuberculosis.
This is an incorrect answer because an induration of 15 mm or more is considered a positive reaction only for people who have no known risk factors for tuberculosis.
This is an incorrect answer because an induration of 20 mm or more is not a criterion for a positive reaction, as it exceeds the maximum threshold for any group.
Choice A reason:
This is an incorrect answer because an induration of 5 mm or more is considered a positive reaction only for certain high-risk groups, such as people who are HIV-positive, have recent contact with a person with active tuberculosis, or have chest radiograph findings consistent with prior tuberculosis.
Choice B reason:
This is a correct answer because an induration of 10 mm or more is considered a positive reaction for most people, including those who are recent immigrants from high-prevalence countries, injection drug users, residents or employees of high-risk settings, children younger than 4 years old, or people with certain medical conditions that increase the risk of tuberculosis.
Choice C reason:
This is an incorrect answer because an induration of 15 mm or more is considered a positive reaction only for people who have no known risk factors for tuberculosis.
Choice D reason:
This is an incorrect answer because an induration of 20 mm or more is not a criterion for a positive reaction, as it exceeds the maximum threshold for any group.