USMLE-STEP-3 practice

Q3 Single choice

One of your responsibilities at the community health center is to serve as director of the tuberculosis (TB) screening and prevention program.

Which of the following test results would be considered positive?

A
10 mm redness and 3 mm induration in a man with HIV
B
10 mm redness and 10 mm induration in a nursing home resident
C
20 mm redness and 8 mm induration in a person with no known risk factors
D
5 mm redness and 5 mm induration in a physician having a routine, annual screening
E
10 mm redness and 5 mm induration in an immigrant from Southeast Asia