Homovanillic Acid is a topic covered in the Davis's Lab & Diagnostic Tests.

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Common Use:
To assist in diagnosis of neuroblastoma, pheochromocytoma, and ganglioblastoma and to monitor therapy.

Urine from a timed specimen collected in a clean plastic collection container with 6N HCl as a preservative.

Normal Findings:
(Method: Chromatography)

AgeConventional UnitsSI Units
Homovanillic Acid(Conventional Units × 5.49)
 3–6 yr1.4–4.3 mg/24 hr8–24 micromol/24 hr
 7–10 yr2.1–4.7 mg/24 hr12–26 micromol/24 hr
 11–16 yr2.4–8.7 mg/24 hr13–48 micromol/24 hr
 Adult–older adult1.4–8.8 mg/24 hr8–48 micromol/24 hr
Vanillylmandelic Acid(Conventional Units × 5.05)
 3–6 yr1–2.6 mg/24 hr5–13 micromol/24 hr
 7–10 yr2–3.2 mg/24 hr10–16 micromol/24 hr
 11–16 yr2.3–5.2 mg/24 hr12–26 micromol/24 hr
 Adult–older adult1.4–6.5 mg/24 hr7–33 micromol/24 hr

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