Biomarkers · Chemical
Homovanillic Acid, 24-Hour Urine with Creatinine
- Also listed as
- HVA
- LOINC codes
- 2162-6, 2436-4, 3167-4
- Tests that measure Homovanillic Acid, 24-Hour Urine with Creatinine
- Quest Diagnostics 1
Tests
Check the catalog code, specimen, method and preparation for every test that measures Homovanillic Acid, 24-Hour Urine with Creatinine. Select up to five tests to compare them side by side.
Quest Diagnostics 1 test
Single-analyte tests
Homovanillic Acid (HVA), 24-Hour Urine with Creatinine 39527
Urine · Fasting not stated · Turnaround Set up: Tues, Fri (p.m.)
Quest Diagnostics catalog pageMethod and collection
- Method
- High Performance Liquid Chromatography (HPLC) • Electrochemical Detection
- Preparation
- It is preferable for the patient to be off medications for three days prior to collection. However, common antihypertensives (diuretics, ACE inhibitors, calcium channel blockers, alpha and beta blockers) cause minimal or no interference. Patient should avoid alcohol, coffee, tea, tobacco and strenuous exercise prior to collection.
- Collection
- Collect 24-hour urine with 25 mL HCl to maintain a pH ≤3. If no preservative is used, specimen must be stored refrigerated during collection but shipped frozen and pH must be ≤6. Record 24-hour urine volume and patient's age on test request form and on urine container.
- Reference notes
- See Laboratory Report
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Quest Diagnostics test catalog
1 test: codes, specimens, methods, preparation and reference intervals.
Regenstrief Institute codes that identify the same result across labs.
Search ClinicalTrials.gov for Homovanillic Acid, 24-Hour Urine with Creatinine
Registered studies that measure Homovanillic Acid, 24-Hour Urine with Creatinine, on the U.S. National Library of Medicine registry.
Verify these ranges and sources
We compile this page from named laboratory catalogs, guidelines and studies. Labs calculate reference intervals from the people they test, for one assay method and one population group, so an interval describes that population rather than an optimal target.
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