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Homovanillic acid, random urine-994

Test info

Test name:

Homovanillic acid, random urine

Test number:

994

Excellian order number:

LAB994

Abbreviation:

MSO

Alternate names:

HVA
HVA, random urine

Useful for:

Diagnose neuroblastoma, ganglioneuroblastoma, and pheochromocytoma
Follow course of tumor treatment

Specimen

Patient preparation information:

Patient should avoid aspirin, disulfiram, reserpine, and pyridoxine, if possible at least 48 hours prior to collection of the specimen.
Levodopa should be avoided for two weeks before collection.

Specimen type:

Urine, random

Collection container:

Screw cap plastic container (non sterile)

Volume:

10 mL

Minimum volume:

4 mL

Processing instructions:

Tranfer a 10mL aliquot (minimum 4mL) to a Transfer vial/tube with cap - 12mL (LabCorp)

Transport container:

Transfer vial/tube with cap - 12mL (LabCorp)

Transport and stability:

Ambient (preferred) - 14 days

Refrigerated - 14 days

Frozen - 14 days

Freeze/thaw cycles - stable x3

Performance

Performing lab:

LabCorp Burlington (120246): R-NX

Days set up:

Mo - Fr

TAT:

4 - 7 days

Method:

Liquid chromatography/tandem mass spectrometry (LC/MS-MS)

Clinical and Interpretive info

Reference ranges:

Age	Reference range (μg/mg creatinine)
0 – 2 months	0.0 − 35.0
3 – 23 months	0.0 − 32.6
2 – 4 years	0.0 − 22.0
5 – 9 years	0.0 − 15.1
10 – 19 years	0.0 − 12.8
>19 years	0.0 − 7.6

Billing

CPT codes:

82570
83150

LOINC code:

Result 2161-8

Tracking

Date created:

05/29/2019

Revised date:

04/11/2022

Review date:

03/31/2022