how long do tb tests stay good for
3 How long should you wait in order to repeat a TB test ? Dr. Lokesh Guglani Dr. Guglani. Generally 6 weeks: The need to repeat a TB test generally depends on each individual's previous test results, presence of symptoms & risk factors for exposure to tb. An interval of at least 6 weeks is generally recommended.
Most places will also accept TB test results from new employees if they were done within the past year. If your daughter had her physical, labs and TB within the last 12 months, she's good to go. Get a letter from her pediatrician and a copy of the TB results.