Homovanillic Acid, 24-hour urine (HVA)

RU0006

Synonym(s):
Specimen Container

24 hrs urine container with 15 mL of 50% HCl
(To be obtained from DPLM Client Services)

Specimen Requirement

Urine
24 hrs urine collection

Minimum aliquot volume : 30 mL urine

Total 24 hr urine volume must be clearly indicated

Orderable as Urgent? No
Turn Around Time

Average: 7 days (3 - 11 days)

Testing Laboratory Location SGH
Laboratory Biochemistry
Contact Number 6394 1352
Day and Time Performed
Mon – Fri: 0800 hrs– 1700 hrs
Orderable on CPOE? Yes
Downtime Form

Document Title

Additional Information

Instructions before sampling

Patient Preparation:


1. Patient should abstain from the following at least 3 days prior to and during urine specimen collection:

1.1 Where medically possible, drugs such as drugs containing phenotiazines which may potentially interfere with the testing.

2. If the patient cannot be completely removed from a drug regime, test result should be interpreted with appropriate clinical judgement based on expected physiology response to these drugs.

Change History Notes

  • 28 Jan 2022 12:00 AM

    ​Updated Specimen Requirement, Turn Around Time and Addtional Information.

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Last Updated - 28 May 2025