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Homovanillic Acid and Vanillylmandelic Acid

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

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Nursing Central

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

Patient Preparation
There are no food, fluid, or activity restrictions unless by medical direction. If possible, and with medical direction, patients should withhold acetylsalicylic acid, disulfiram, pyridoxine, and reserpine for 2 days before specimen collection. Levodopa should be withheld for 2 wk before specimen collection. The test should begin between 0600 and 0800 if possible. Usually, a 24-hr urine collection is ordered. As appropriate, provide the required urine collection container and specimen collection instructions.

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

Critical Findings and Potential Interventions

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Bladh, Mickey Lynn., and Anne M. Van Leeuwen. "Homovanillic Acid and Vanillylmandelic Acid." Davis's Lab & Diagnostic Tests, 7th ed., F.A. Davis Company, 2017. Nursing Central, nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425473/all/Homovanillic_Acid_and_Vanillylmandelic_Acid.
Bladh ML, Van Leeuwen AM. Homovanillic Acid and Vanillylmandelic Acid. Davis's Lab & Diagnostic Tests. 7th ed. F.A. Davis Company; 2017. https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425473/all/Homovanillic_Acid_and_Vanillylmandelic_Acid. Accessed July 17, 2019.
Bladh, M. L., & Van Leeuwen, A. M. (2017). Homovanillic Acid and Vanillylmandelic Acid. In Davis's Lab & Diagnostic Tests. Available from https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425473/all/Homovanillic_Acid_and_Vanillylmandelic_Acid
Bladh ML, Van Leeuwen AM. Homovanillic Acid and Vanillylmandelic Acid [Internet]. In: Davis's Lab & Diagnostic Tests. F.A. Davis Company; 2017. [cited 2019 July 17]. Available from: https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425473/all/Homovanillic_Acid_and_Vanillylmandelic_Acid.
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TY - ELEC T1 - Homovanillic Acid and Vanillylmandelic Acid ID - 425473 A1 - Bladh,Mickey Lynn, AU - Van Leeuwen,Anne M, BT - Davis's Laboratory & Diagnostic Tests UR - https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425473/all/Homovanillic_Acid_and_Vanillylmandelic_Acid PB - F.A. Davis Company ET - 7 DB - Nursing Central DP - Unbound Medicine ER -