HOMOVANILLIC ACID (HVA)

Specimen Required
Patient Preparation: Abstain from all medication 72 hours prior to collection. Collect 24 hour urine, refrigerate during collection. Mix well and send a 5.0 mL urine aliquot (1.0 mL minimum) refrigerated in a screw-capped plastic urine container. Record total volume on requisition and specimen label.

Alternate Specimen
Random urine

Methodology
Quantitative High Performance Liquid Chromotography - Tandem Mass Spectrometry

Stability
Room Temperature: Unacceptable; Refrigerated: 7 days; Frozen: 14 days

Reference Range
By report

Performed
Sunday, Tuesday-Saturday

Turnaround Time4-6 days
Test CodeUHVA
CPT-4 Code (s)
83150
LOINC Codes
Collection Length:   30211-7  
Total Volume:   19153-6  
Homovanillic Acid (HVA), Urine:   12715-9  
Creatinine, Urine - mg/dL:   2161-8  
Creatinine, Urine - mg/d:   2162-6  
HVA Urine mg:   53595-5  
HVA, Urine - mg/g:   13760-4  
HVA Interpretation:   49269-4  

Warde
Medical
Laboratory