Biomarker Lens

Common biomarkers

  • Hemoglobin
  • Glucose
  • ALT
  • Apolipoprotein B
  • C-Reactive Protein, Cardiac
  • Ferritin
  • Alb/Creat Ratio, Urine
  • Alkaline Phosphatase
  • FSH
  • T4,Free(Direct)

Biomarkers · Chemical

HVA, Urine, 24hr

Primary unit
mg/24 hr
LOINC codes
2436-4
Tests that measure HVA, Urine, 24hr
Labcorp 1

Tests

Check the catalog code, specimen, method and preparation for every test that measures HVA, Urine, 24hr. Select up to five tests to compare them side by side.

Labcorp 1 test

Panels that include this biomarker

  • Homovanillic Acid (HVA), 24-Hour Urine 120253

    2 analytes · Urine · Fasting not stated · Turnaround 3 - 6 days

    Method and collection
    Method
    Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
    Preparation
    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.
    Collection
    Instruct the patient to void at 8 AM and discard the specimen. Then collect all urine including the final specimen voided at the end of the 24-hour collection period (ie, 8 AM the next morning). Measure and record total urine volume. Mix well; send aliquot. Label container with patient's name, date and time collection started, and date and time collection finished.
    Reference notes
    0.0−10.0 mg/24 hours
    Labcorp catalog page

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Sources

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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