What is meant by "diagnostic purpose"?

Question

i got an assignment in which i have to identify the main diagnostic purpose for xrays. what is emant by diagnostic purpose and what would it be for xrays

Answer 1

it means what are the things that you can detect in an X-ray that will help make a diagnosis or exclude some disease. for example, looking at an X-ray you can see if there are any fractures, metal plates, or the presence of stones. the use of contrast medium with an X-ray can diagnose even more diseases.