Chest X-ray for TB Screening

Why is this screening offered?

Your child is a close contact of someone with tuberculosis (TB). Close contacts have a higher risk of developing TB. A chest X-ray helps detect TB early, so treatment can start quickly if needed. Early detection protects your child and others.

Benefits of the Chest X-ray

Detects TB early, before serious illness develops
Allows early treatment which is very effective in children
Reduces the spread of TB to family and friends
Provides reassurance when results are normal

Page contents

On this page you will find information about:

Why is this screening offered?
Is the X-ray safe?
What happens on the day?
Where can I get more information?

Is the X-ray safe?

Yes. A chest X-ray uses a very small amount of radiation (about 0.1 mSv). This is much lower than everyday exposure from natural sources, and the benefits far outweigh the risks.

Possible Results

Normal: No signs of TB disease. Your child may still be offered TB preventative treatment.
Abnormal: Does not always mean TB. Further tests may be needed to be sure.

What happens on the day?

The X-ray is quick and painless and only takes a few minutes. A specialist doctor will review the image and discuss the result with you.

Your Questions Answered

Where can I get more information?

Your child’s doctor or nurse
Children’s Health Ireland Infectious Disease Team

Thank you for helping protect your child’s health and the health of others.