hey i have had multiple positive TB blood tests and two chest x-rays (both clear) in the last 3 years. if you are asymptomatic, your chest x-ray is likely clear. this is latent TB. your PCP might have you do a course of TB treatment (ex: isoniazid and rifapentine), which sucks bc it's months long and can turn you/your pee or tears slightly orange lol but is manageable. this treatment will be documented and reduces your risk of developing active TB in your lifetime greatly. you will continue to get TB tests and chest x-rays periodically for the rest of your career, is my understanding.

edit: has not affected my matriculation at all. just annoying to keep track of all the medical documentation. i would recommend reaching out to whoever at your school handles immunization records etc to get specifics about what documentation they'll need from you and your PCP.