A doctor will take document your medical history, conduct a physical examination based on subjective complaints as well as objective findings. The doctor will then come to a diagnosis.
If needed, a doctor may also order diagnostic studies, such as an MRI. There also may be sleep studies if there is a head injury.
Ultimately a doctor must make a diagnosis and determine causation. Based on the history of the accident, a doctor will determine a diagnosis. Then, the medical provider will determine if there is physical impairment permanency which are opinions that we need to prove your injuries.