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

Urea Nitrogen, U, Urine

Primary unit
mg/dL
LOINC codes
3095-7
Tests that measure Urea Nitrogen, U, Urine
Labcorp 3, Quest Diagnostics 1

Tests

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

Labcorp 3 tests

Panels that include this biomarker

  • Urea Nitrogen, 24-Hour Urine 003541

    2 analytes · Urine · Fasting not stated · Turnaround Within 1 day

    Method and collection
    Method
    Urease
    Collection
    Refrigerate the specimen as it is collected. 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. Container must be labeled with patient's full name, date and time collection started, and date and time collection finished.
    Reference notes
    See table. Age Male (g/24 hr) Female (g/24 hr) 0 to 5 y Not established Not established 6 to 17 y 3–21 2–13 18 to 70 y 5–22 4–16 >70 y 4–16 2–12
    Labcorp catalog page

  • Urea Nitrogen and Creatinine Profile, 24-Hour Urine 317222

    4 analytes · Urine · Fasting not stated · Turnaround Within 1 day

    Method and 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 following morning). Fasten the lid securely. The container must be labeled with the patient's full name, the date and time the collection began, and the date and time collection ended.
    Labcorp catalog page

  • Urea Nitrogen Clearance 002329

    4 analytes · Serum · Fasting not stated · Turnaround Within 1 day

    Method and collection
    Method
    Enzymatic (urease)
    Collection
    Serum must be drawn during urine collection. Separate serum from cells within 45 minutes of collection.
    Labcorp catalog page

Quest Diagnostics 1 test

Single-analyte tests

  • Urine Urea Nitrogen, Random without Creatinine 1737

    Urine · Fasting not stated · Turnaround Set up: Daily

    Method and collection
    Method
    Spectrophotometry (SP)
    Collection
    No preservative required. Ship refrigerated.
    Reference notes
    See Laboratory Report
    Quest Diagnostics 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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