Homovanillic Acid, 24-Hour Urine with Creatinine
What’s Being Tested:
- Homovanillic Acid (24-Hour Urine) with Creatinine
- It is preferable for the patient to be off medications for three days prior to collection. Common antihypertensives (diuretics, ACE inhibitors, calcium channel blockers, alpha and beta blockers) may cause minimal or no interference. The patient should avoid alcohol, coffee, tea, tobacco, and strenuous exercise prior to collection.
Fasting Required: No
Specimen: Urine (Draw Location | How It Works | FAQs)
Notes:
Medical Review Board
Reviewed by Jeff Donohue M.D. from Body Logic and Brady Hurst DC, CCCN. Written by True Health Lab’s team of editorial health contributors.
Disclaimer: This information is for educational purposes only and not intended as medical advice. Consult your healthcare provider for personalized guidance.
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