most helpful answer there are no special tests like blood tests to make that determination. the choice and dosage of anti-derpressant medication is based solely on the medical history and a bit of "trial and error". until the proper medication and dosage is found changes are often made. i am not saying this ten minute questionaire was appropriate but a skilled medical provider can usually pick the right combination of medications and counselling to help.
are there medical tests for people with depression to find out if the proper medications and the amount given are correc. if antidepresants are given to a patient by a psycologist is it appropriate to make the diagnosis and what drugs and the amount used only from a 10 minute questionare or are there actual medical tests that can be performed to diagnose and treat mental illness?