The healthcare provider will ask about your child’s symptoms and health history. They may also ask about your family’s health history. They will give your child a physical exam.
One way of diagnosing TB is with a TB skin or blood test. In the skin test, a small amount of testing material is injected into the top layer of the skin. If a certain size bump develops within 2 or 3 days, the test may be positive for TB infection. For the TB blood test, a small amount of blood is taken from the child’s arm or hand. It takes a few days for results to come back.
Your child may also need a chest X-ray, sputum testing, or a biopsy of abnormal glands or other body tissue.
A TB skin or blood test is advised for children who:
- May have been exposed to TB in the last 5 years
- Has an X-ray that looks like TB
- Has any symptoms of TB
- Comes from a country where TB is common
Yearly TB skin or blood testing should be done on children who:
- Have HIV
- Are in a detention facility
A child who is exposed to high-risk people should be tested every 2 to 3 years.