This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
Blood of 45 yrs old male shows increase HVA. This pt is most likely to show NOT RELATED-PSYCHIATRY 
Select and explain. 
A. PCC, B. Schizophrenia, C. Depression, D. Parkinson's ds
B: Schizophrenia
Answer: B: Schizophrenia 
Explanation: Increased levels of HVA are found in the schizophrenia but this does not have any clinical utility. It is a research-based parameter based on the fact that schizophrenia is a illness caused by Hyperdopaminergic state. HVA is a metabolite of dopamine higher levels are found in CSF and plasma.