Hello,
To confirm the diagnosis of
asthma pulmonary function test is a better choice. It is a non invasive test that requires your child to blow a tube, and the test will clearly show over all lung function.
The chest x-ray details do suggest some inflammatory lung process, however looking at an x-ray film will give better details.
The comment on heart is magnified cardiac silhouette; that may be caused by enlargement of heart, collection of fluid in lungs, pad of fat surrounding heart, or even if x-ray is taken from AP view.
As your son is already on antibiotics, and the
cough still persist; I would suggest you to get a pulmonary function test done.
Moreover, asthma management requires inhalation of
steroids, and antibiotics are only required for signs of bacterial infection like
fever, or
pneumonia.
Hope I have answered your query. Let me know if I can assist you further.
Take care
Regards,
Dr Ayesha Shareef, General & Family Physician