Chronic health problems such as cardiovascular disease, diabetes, obesity, cancer and kidney disease account for more than 75% of the nation's $2.7 trillion in annual spending for medical care, says Ursula Bauer of the Centers for Disease Control and Prevention.
He might need to have one while waiting for a TS clearance to go thru. They take from 1-4 months for the interim, the TS clearance could take from 1 month to 2 years from what I have seen. I had to wait 2 years for the final one to go thru. As I said I have also seen people get them really fast too.
1 After your TST is administered, you must return to the same DOH TB testing location within 48-72 hours to have your TST read. 2  For persons needing a two-step TST, the entire process takes a minimum of 9 calendar days and you will receive a total of two TSTâs.