How can you update when someone wants a psychologist and when he wishes a psychiatrist?

A psychologist can diagnose some disorders, but the main difference is whether medication is needed or not. A psychiatrist is a medical doctor. They turn to med school, and after on to specialty courses and training in mental strength. A psychologist cannot prescribe meds, but a psychiatrist can. A psychologist however, does have expertise of meds, and can suggest that certain ones be prescribed to your doctor, who can after prescribe them. Hope this helps.
If the tolerant knows (s)he desires advice,a psychologist is plenty.If the patient does not know that (s)he wants care a psychiatrist is needed.For groups similar to addicts,delinquent,inmates of a prison a skilled trained psychologist is needed.
It depends on what the specific needs of that entity are. A psychiatrist is an actual doctor who has full authority to prescribe medication and actually net a medical diagnosis. A psychologist does NOT have that authority, but studied psychology. We sometimes refer to psychologists as "counselors." In my evaluation, and if the person can afford it, I would give an account them to see a psychiatrist first. This way they would if truth be told know what the medical diagnosis was and if it's required, the psychiatrist can refer his patient to a psychologist. :)