There is not one specific ADHD test doctors run before offering medical advice, diagnosis, or treatment.
For a doctor to diagnose ADHD, a patient must exhibit at least 6 of the symptoms outlined above. Also, the patient must also have shown these symptoms before age 12 and show symptoms in two or more settings.
There must be evidence that the symptoms interfere with one’s functioning at school, work, or social events, too. In turn, the patient’s doctor must also verify that the symptoms aren’t caused by another condition (such as learning disabilities).