Diagnosing whiplash requires patient history, a questionnaire, and evaluation. The questionnaire will consist of what symptoms, the location of the symptoms, how and when the symptoms occurred and the level of pain the patient is in. During the evaluation, postural alignment is observed, the neck is palpated for tenderness, and the neck is tested for strength and mobility. If the pain is mild and neck range of motion is normal, then further evaluation wouldn’t be necessary. If there are limitations in mobility, strength, or anything leading the doctor to believe it could be a Grade 2 injury or higher than diagnostic imaging would need to be performed to check for structural issues to the head, neck, and back.