A 23-year-old patient from another country just recently came to the United States. The patient is excited, having just been accepted to medical school. The patient is required to have a PPD test...

A 23-year-old patient from another country just recently came to the United States. The patient is excited, having just been accepted to medical school. The patient is required to have a PPD test prior to entrance into the college. You perform the test and the patient returns two days later. The test site is very swollen. The provider looks at the site and states that the test is positive.

 1. What could be some possible contributors for the positive reaction?

2. What type of treatment would be indicated for this patient?

3. Why is TB skin testing not an option for this patient in the future? What other testing might the patient have done in the future?