TB screening in the immigration medical exam takes judgment. A positive IGRA (a TB blood test) has to be read against your BCG history, prior imaging, treatment records and current CDC technical instructions. Dr. Gurpreet Singh Padda, MD, MBA, MHP reviews every TB result himself. So prior positive tests are checked against your records, not re-tested by reflex.
Your immigration journey is the change of your entire life. At the final medical hurdle, precision matters more than speed.
Why does rushed TB screening cause immigration exam problems?
Some clinics treat immigration medical exams as volume work. Get the applicant in, check the boxes, move to the next. TB screening is exactly where that approach breaks down. Tuberculosis evaluation takes judgment. A positive IGRA has to be read against BCG history, prior imaging, treatment records, and CDC technical instructions that are updated regularly. A rushed reading creates needless chest X-rays at best. At worst, it creates a rejected filing.
How is a positive TB test reviewed at our clinic?
At our Woodson clinic, Dr. Padda reviews every TB result himself, in light of your full history. Prior positive tests are checked against your records, not re-tested by reflex. When imaging is required, we set up the prepaid chest X-ray directly. The radiology report goes into your I-693 before it’s sealed. One clean file, one closed loop.
What can I do to make TB screening go faster?
Bring your history. Prior TB tests, X-ray reports, treatment records, and BCG vaccine history all change how fast your evaluation wraps up. The applicants who move through fastest aren’t the luckiest. They’re the best documented.
Related reading: Gonorrhea & Syphilis Testing in the I-693 Process · I-693 Exam: What St. Louis Applicants Must Know · I-693 Immigration Medical Exam Cost — $390 Flat, St. Louis
Frequently Asked Questions
Why does TB screening cause so many green card delays?
Because reading the result needs history. Without prior records, a positive result starts the whole chain over from zero. That means testing, imaging, and documentation again.
TB Testing Is Where Green Card Exams Stall — Don’t Walk In Blind explains why TB testing is where so many exams stall.
Does the clinic arrange the chest X-ray if I need one?
Yes. When imaging is required, we set up a prepaid chest X-ray. We put the radiology report directly into your sealed I-693.
What a positive result means, and when a chest X-ray follows, is covered in TB Testing and Treatment in the I-693 Exam: What St. Louis Applicants Must Know.
Is a history of treated TB a problem for my application?
Documented, completed treatment is a fact we can resolve. The exam’s purpose is to confirm there is no active disease. It is not to penalize medical history.
What happens if my TB test is positive for immigration?
A positive IGRA starts an evaluation, not a denial. Dr. Padda reads the result himself. He weighs it against your BCG history, any prior imaging, your treatment records and current CDC technical instructions. When a chest X-ray is required, we set it up. We fold the radiology report into your I-693 before the form is sealed. So the whole file closes as one clean loop.
How do I prove my TB status for the I-693?
With paper. Bring every prior TB test result, chest X-ray report, record of TB treatment and your BCG vaccination history. Prior positive tests are checked against those records, not re-tested by reflex. Without records, a positive result restarts the chain of testing, imaging and documentation from zero. That is where the weeks go.
Watch the full video above, and explore the rest of the series on our YouTube channel.
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Dr. Gurpreet Padda, MD — USCIS-Designated Civil Surgeon (CSID 111051)
4477 Woodson Rd, Suite 102, St. Louis, MO 63134 — minutes from St. Louis Lambert International Airport
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This article is educational information about the immigration medical examination process. It is not legal advice and does not create a physician–patient relationship. For legal questions about your case, consult a licensed immigration attorney.
Medically reviewed by Dr. Gurpreet Singh Padda, MD, MBA, MHP — USCIS-designated civil surgeon (CSID 111051), board certified in Anesthesiology, Pain Medicine, Interventional Pain Management, Addiction Medicine, and Obesity Medicine. Last reviewed September 2026.
