A health care provider suspects a patient has schizophrenia and orders an MRI or CT. What is the value of ordering these tests?
1) No value, as these tests rarely lead to diagnosis of a clinically relevant disorder
2) High value as psychosis is caused by diverse symptoms and patients want to rule out everything before being diagnosed as schizophrenic
3) While controversial, a normal MRI or CT can exclude some treatable causes of psychosis and support diagnosis of schizophrenia
4) Little value, as you expect a normal test
