@ Kyledreyzeus:

Based on my husband's experience, after the x-ray he went for mantoux test, that is after a month. His mantoux test resulted into negative that's why he passed the process and now ready for finger printing. His reaction to the mantoux/PPD test is 5mm.

Some people who has a larger induration has been required to have sputum test or another set of x-rays or even treatment.