Question: What is detected by the HVA metabolite, produced by the organic chemical of the catecholamine and phenethylamine families?
Sentence (from "Dopamine"): Dopamine (DA, a contraction of 3,4-dihydroxyphenethylamine) is an organic chemical of the catecholamine and phenethylamine families that plays several important roles in the brain and body.
Relevant evidence: Yes