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

Metanephrine, U,24hr, Urine

Primary unit
ug/24 hr
LOINC codes
19049-6
Tests that measure Metanephrine, U,24hr, Urine
Labcorp 1, Quest Diagnostics 1

Tests

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

Labcorp 1 test

Panels that include this biomarker

  • Metanephrines, Fractionated, Quantitative, 24-Hour Urine 004234

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

    Method and collection
    Method
    Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
    Preparation
    No caffeine before or during collection. Monamine oxidase inhibitors should be discontinued at least one week prior to beginning 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). Screw the lid on securely. Label container with patient's name, date and time collection started, and date and time collection finished. Measure and record total 24-hour volume. Mix well; send aliquot. (HCl is an acceptable preservative if required for a concurrently collected assay. PeopleSoft item number for this container is No. 21584.)
    Reference notes
    Normetanephrine, U, 24 Hr Age Male Female 0 to 8 y 48–229 48–200 9 to 12 y 80–384 71–296 13 to 20 y 105–405 90–315 21 to 30 y 110–553 95–449 >30 y 156–729 131–612 Metanephrine, U, 24 hr Age Male Female 0 to 8 y 30–150 32–123 9 to 12 y 54–209 44–161 13 to 17 y 56–236 44–161 >17 y 58–276 36–209
    Labcorp catalog page

Quest Diagnostics 1 test

Panels that include this biomarker

  • Metanephrines, Fractionated, LC/MS/MS, 24-Hour Urine 14962

    3 analytes · Urine · Fasting not stated · Turnaround Set up: Mon-Fri; Report available: 5 days

    Method and collection
    Method
    Chromatography/Tandem Mass Spectrometry
    Preparation
    It is preferable for the patient to be off medications for three days prior to collection. Patient should avoid tobacco, tea, coffee, for three days prior to specimen collection. Common antihypertensives (diuretics, ACE inhibitors, calcium channel blockers, alpha and beta blockers) cause minimal or no interference. Medications which are alpha agonists (Aldomet), alpha blockers (Dibenzyline) should be avoided 18-24 hours prior to specimen collection.
    Collection
    After urine collection, add 25 mL 6N HCL to maintain a pH below 3. Urine without preservative is accecptable if pH is below 6 and the sample is shipped frozen. Record 24-hour urine volume and patient's age on test requisition and urine vial.
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

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Sources

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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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