If it is not clear what's causing your child's symptoms, or your child has signs of severe bronchiolitis, your GP may recommend further tests in hospital to help confirm the diagnosis.
These tests might include:
- a mucus sample test (where a sample of mucus from your child's nose will be tested to identify the virus causing their bronchiolitis)
- urine or blood tests
- a pulse oximeter test (where a small electronic device is clipped to your child's finger or toe to measure the oxygen in their blood)