In general, there is no risk associated with repeated tuberculin skin test placements. If a person does not return within 48-72 hours for a tuberculin skin test reading, a second test can be placed as soon as possible. There is no contraindication to repeating the TST, unless a previous TST was associated with a severe reaction.
The cost is likely to be $30-60. It is not yet approved for reimbursement by NY State Medicaid but is approved
by Medicare. QFT-G can yield cost savings in terms of medical staff time by elimination of a second patient visit
for test interpretation, and the elimination of common false-positive results, the latter involving both unnecessary
follow-up testing and treatment for LTBI.