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

Creatinine, Urine

This test measures creatinine levels in a sample of your blood and/or urine (pee). Creatinine is a normal waste product in your body.

Creatinine Test, MedlinePlus, National Library of Medicine

Primary unit
mg/dL
LOINC codes
2161-8, 19150-2
Tests that measure Creatinine, Urine
Labcorp 67, Quest Diagnostics 61

Ranges

Each lab publishes a reference range for the population groups it tests, usually the middle 95% of results. These intervals describe that population, not an optimal or healthy target. How ranges differ

Quest Diagnostics, Magnesium, Pediatric Urine 11220

PopulationInterval
>12 Years Female20-275 mg/dL
<1 MonthNot Established
1-11 Months0.10-0.48 mg/mg creat
1 Year0.09-0.37 mg/mg creat
2 Years0.07-0.34 mg/mg creat
3-4 Years0.07-0.29 mg/mg creat
5-6 Years0.06-0.21 mg/mg creat
7-9 Years0.05-0.18 mg/mg creat
10-13 Years0.05-0.15 mg/mg creat
14-17 Years0.05-0.13 mg/mg creat
≤6 Months2-28 mg/dL
7-11 Months2-31 mg/dL
1-2 Years2-110 mg/dL
3-8 Years2-130 mg/dL
9-12 Years2-160 mg/dL
>12 Years Male20-320 mg/dL

Quest Diagnostics test catalog, 11220

Quest Diagnostics, Copper, Random Urine 15319

PopulationInterval
7-11 Months2-31 mg/dL
>12 Years Female20-275 mg/dL
>12 Years Male20-320 mg/dL
9-12 Years2-160 mg/dL
3-8 Years2-130 mg/dL
1-2 Years2-110 mg/dL
≤6 Months2-28 mg/dL
Copper, Random Urine<87 mcg/g creatinine

Quest Diagnostics test catalog, 15319

Quest Diagnostics, Zinc, Random Urine 16502

PopulationInterval
Zinc, Random Urine100-810 mcg/g creat
Creatinine, Random Urine, ≤6 Months2-28 mg/dL
Creatinine, Random Urine, 7-11 Months2-31 mg/dL
Creatinine, Random Urine, 1-2 Years2-110 mg/dL
Creatinine, Random Urine, 3-8 Years2-130 mg/dL
Creatinine, Random Urine, 9-12 Years2-160 mg/dL
Creatinine, Random Urine, >12 Years Male20-320 mg/dL
Creatinine, Random Urine, >12 Years Female20-275 mg/dL

Quest Diagnostics test catalog, 16502

Quest Diagnostics, Collagen Cross-Linked N-Telopeptide (NTx), Urine 36167

PopulationInterval
Collagen Cross-Linked N-Telopeptide (NTx), Random Urine, 18-29 Years12-99 nM BCE/mM creat
Collagen Cross-Linked N-Telopeptide (NTx), Random Urine, 30-59 Years9-60 nM BCE/mM creat
Collagen Cross-Linked N-Telopeptide (NTx), Random Urine, Premenopausal4-64 nM BCE/mM creat
MaleNot stated
FemaleNot stated
Creatinine, Random Urine, ≤6 Months2-28 mg/dL
Creatinine, Random Urine, 7-11 Months2-31 mg/dL
Creatinine, Random Urine, 1-2 Years2-110 mg/dL
Creatinine, Random Urine, 3-8 Years2-130 mg/dL
Creatinine, Random Urine, 9-12 Years2-160 mg/dL
Creatinine, Random Urine, >12 Years Male20-320 mg/dL
Creatinine, Random Urine, >12 Years Female20-275 mg/dL

Quest Diagnostics test catalog, 36167

Tests

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

Labcorp 67 tests

Panels that include this biomarker

  • Creatinine, 24-Hour Urine 003012

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

    Method and collection
    Method
    Kinetic
    Collection
    If the specimen is a 24-hour 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. Transport the specimen promptly to the laboratory. Container must be labeled with patient's full name, date and time collection started, and date and time collection finished.
    Labcorp catalog page

  • o-, m-, p -Xylene (as Methylhippuric Acid), Occupational Exposure, Urine 791128

    2 analytes · Urine · Fasting not stated · Turnaround 7 - 14 days

    Method and collection
    Method
    Gas chromatography/flame ionization detection (GC/FID); spectrophotometry (SPEC)
    Collection
    Urine container should be filled to prevent loss of volatile compound into headspace.
    Labcorp catalog page

  • Phenol, Occupational Exposure, Urine 723200

    2 analytes · Urine · Fasting not stated · Turnaround 10 - 14 days

    Method and collection
    Method
    Gas chromatography/flame ionization detection (GC/FID); spectrophotometry (SPEC)
    Collection
    Tubes should be filled completely to prevent loss of volatile compound into headspace. Collection time: end of shift or end of exposure
    Labcorp catalog page

  • Prostaglandin D2/Creatinine Ratio, Urine 505525

    2 analytes · Urine · Fasting not stated · Turnaround 8 - 10 days

    Method and collection
    Method
    SPE and LC-MS/MS Analysis
    Collection
    Random urine is acceptable and preferred. Preservative should not be added, but the urine should be frozen immediately.
    Labcorp catalog page

  • Toluene (as Hippuric Acid), Occupational Exposure, Urine 811794

    2 analytes · Urine · Fasting not stated · Turnaround 10 - 14 days

    Method and collection
    Method
    Gas chromatography/flame ionization detection (GC/FID)
    Collection
    Tubes should be filled to prevent loss of volatile compound into headspace. Collect at end of shift.
    Labcorp catalog page

Quest Diagnostics 61 tests

Single-analyte tests

  • 5-Hydroxyindoleacetic Acid (5-HIAA), Random Urine with Creatinine 1648

    Urine · Fasting not stated · Turnaround Set up: Tues, Thurs, Fri (p.m.); Report available: 5 days

    Method and collection
    Method
    High Performance Liquid Chromatography (HPLC) • Electrochemical Detection
    Preparation
    Patient should avoid food high in indoles: avocado, banana, tomato, plum, walnut, pineapple, and eggplant.
    Collection
    After urine collection, add 6N HCl to maintain a pH below 3. Urine without preservative is acceptable if pH is below 6 and the sample is shipped frozen. Record patients age on test request form and urine vial.
    Reference notes
    5-HIAA, Random Urine <2 Years | Not established 2-10 Years | ≤12.0 mg/g creat >10 Years | ≤10.0 mg/g creat Creatinine, Random Urine ≤6 Months | 2-28 mg/dL 7-11 Months | 2-31 mg/dL 1-2 Years | 2-110 mg/dL 3-8 Years | 2-130 mg/dL 9-12 Years | 2-160 mg/dL >12 Years Male | 20-320 mg/dL >12 Years Female | 20-275 mg/dL
    Quest Diagnostics catalog page

  • Arsenic, Urine 270

    Urine · Fasting not stated

    Method and collection
    Method
    Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
    Preparation
    Avoid seafood consumption 48 hours prior to collection
    Collection
    Collect urine in an acid-washed or metal-free plastic container. Note: Tests performed on a specimen submitted in a non-trace element tube or non-acid washed/non-metal free container may not accurately reflect the patient's level. If a non-trace element tube/container is received, it will be accepted for testing. However, elevated results shall be reported with a message that a re-submission with a trace element tube/container is recommended.
    Reference notes
    Arsenic, Random Urine Non-exposed Adult | ≤35 mcg/g creat Biological Exposure Index (end of shift/work week) | ≤50 mcg/g creat Creatinine, Random Urine ≤6 Months | 2-28 mg/dL 7-11 Months | 2-31 mg/dL 1-2 Years | 2-110 mg/dL 3-8 Years | 2-130 mg/dL 9-12 Years | 2-160 mg/dL >12 Years Male | 20-320 mg/dL >12 Years Female | 20-275 mg/dL
    Quest Diagnostics catalog page

  • Bismuth, Random Urine with Creatinine 6060

    Urine · Fasting not stated

    Method and collection
    Method
    Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
    Preparation
    Avoid taking mineral supplements and bismuth preparations such as Pepto-Bismol for at least 1 week prior to collection.
    Collection
    Collect urine in an acid-washed or metal-free plastic container. Note: Tests performed on a specimen submitted in a non-trace element tube or non acid-washed/non metal-free container may not accurately reflect the patient's level. If a non-trace element tube/container is received, it will be accepted for testing. However, elevated results shall be reported with a message that a re-submission with a trace element tube/container is recommended.
    Reference notes
    Bismuth, Random Urine Non-exposed Adult | ≤7.4 mcg/g creat Creatinine, Random Urine ≤6 Months | 2-28 mg/dL 7-11 Months | 2-31 mg/dL 1-2 Years | 2-110 mg/dL 3-8 Years | 2-130 mg/dL 9-12 Years | 2-160 mg/dL >12 Years Male | 20-320 mg/dL >12 Years Female | 20-275 mg/dL
    Quest Diagnostics catalog page

  • Cadmium, Random Urine 672

    Urine · Fasting not stated

    Method and collection
    Method
    Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
    Collection
    Avoid worksite collection. Collect urine in an acid-washed or metal-free plastic container.
    Reference notes
    Cadmium, Random Urine Non-exposed Adult ≤1.2 mcg/g creat OSHA Reference Range for Industrial Exposure ≤3.0 mcg/g creat Creatinine, Random Urine ≤6 Months 2-28 mg/dL 7-11 Months 2-31 mg/dL 1-2 Years 2-110 mg/dL 3-8 Years 2-130 mg/dL 9-12 Years 2-160 mg/dL >12 Years Male 20-320 mg/dL >12 Years Female 20-275 mg/dL
    Quest Diagnostics catalog page

  • Chromium, Urine 11278

    Urine · Fasting not stated

    Method and collection
    Method
    Colorimetric (C) • Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
    Collection
    Note: Tests performed on a specimen submitted in a non-trace element tube/container (non acid-washed) may not accurately reflect the patient's level. If a non-trace element tube/container is received, it will be accepted for testing. However, elevated results shall be reported with a message that resubmission with a trace element tube/container is recommended.
    Reference notes
    Chromium, Urine | <2.0 ng/mL Chromium/Creatinine Ratio | <5.0 mcg/g creat ACGIH Biological Exposure Index Increase during shift | 10 mcg/g cr End-of-shift at end-of-work-week | 30 mcg/g cr Creatinine, Random Urine ≤6 Months | 2-28 mg/dL 7-11 Months | 2-31 mg/dL 1-2 Years | 2-110 mg/dL 3-8 Years | 2-130 mg/dL 9-12 Years | 2-160 mg/dL >12 Years Male | 20-320 mg/dL >12 Years Female | 20-275 mg/dL
    Quest Diagnostics catalog page

  • Collagen Cross-Linked N-Telopeptide (NTx), Urine 36167

    Urine · Fasting not stated · Turnaround Set up: Mon-Sat

    Method and collection
    Method
    Chemiluminescence (CL)
    Collection
    Do not use preservatives. Acidified specimen is not acceptable. Second morning void urine: Discard the first morning void. Collect the second morning void. Mix well.
    Quest Diagnostics catalog page

  • Copper, Random Urine 15319

    Urine · Fasting not stated

    Method and collection
    Method
    Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) or Atomic Spectroscopy (AS)
    Collection
    Collect urine in an acid-washed or metal-free plastic container
    Quest Diagnostics catalog page

  • Cortisol, Free, LC/MS/MS, Second Void Urine 90582

    Urine · Fasting not stated · Turnaround Set up: Sun-Fri

    Method and collection
    Method
    Colorimetric (C) • Kinetic • Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
    Collection
    Collect second a.m. urine
    Reference notes
    Cortisol,Free,2nd Void Urine 3.5-87.1 mcg/g creat Creatinine, Random Urine ≤6 Months 2-28 mg/dL 7-11 Months 2-31 mg/dL 1-2 Years 2-110 mg/dL 3-8 Years 2-130 mg/dL 9-12 Years 2-160 mg/dL >12 Years Male 20-320 mg/dL >12 Years Female 20-275 mg/dL
    Quest Diagnostics catalog page

  • Creatinine, Random Urine 8459

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

    Method and collection
    Method
    Colorimetric (C) • Kinetic
    Reference notes
    ≤6 Months 2-28 mg/dL 7-11 Months 2-31 mg/dL 1-2 Years 2-110 mg/dL 3-8 Years 2-130 mg/dL 9-12 Years 2-160 mg/dL >12 Years Male 20-320 mg/dL >12 Years Female 20-275 mg/dL
    Quest Diagnostics catalog page

  • Hippuric Acid, Urine 725

    Urine · Fasting not stated · Turnaround Set up: Mon-Sat

    Method and collection
    Method
    Colorimetry (C) • High Performance Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)
    Collection
    Collect sample at the end of shift. The acidification of the urine with 1 mL acetic acid per 100 mL urine will prolong the stability of the analyte.
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

  • Homovanillic Acid (HVA), Random Urine 6346

    Urine · Fasting not stated · Turnaround Set up: Tues, Fri (p.m.)

    Method 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.
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

  • Lead, Urine 601

    Urine · Fasting not stated

    Method and collection
    Method
    Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
    Collection
    Avoid worksite collection. Collect urine in an acid-washed or metal-free plastic container. Note: Tests performed on a specimen submitted in a non-trace element tube or non-acid washed/non-metal free container may not accurately reflect the patient's level. If a non-trace element tube/container is received, it will be accepted for testing. However, elevated results shall be reported with a message that a re-submission with a trace element tube/container is recommended.
    Reference notes
    Lead, Urine Non-exposed Adult | <10 mcg/g creat Creatinine, Random Urine ≤6 Months | 2-28 mg/dL 7-11 Months | 2-31 mg/dL 1-2 Years | 2-110 mg/dL 3-8 Years | 2-130 mg/dL 9-12 Years | 2-160 mg/dL >12 Years Male | 20-320 mg/dL >12 Years Female | 20-275 mg/dL
    Quest Diagnostics catalog page

  • Magnesium, Pediatric Urine 11220

    Urine · Fasting not stated · Turnaround Set up: Tues-Fri

    Method and collection
    Method
    Spectrophotometry (SP)
    Collection
    Adjust pH to <3.0 with 6N HCl prior to aliquoting for testing. Submit 2nd A.M. voided specimen.
    Quest Diagnostics catalog page

  • Mercury, Random Urine 637

    Urine · Fasting not stated

    Method and collection
    Method
    Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
    Preparation
    Avoid seafood consumption for 48 hours prior to collection
    Collection
    Avoid worksite collection. Collect urine in an acid-washed or metal-free plastic container.
    Reference notes
    Mercury, Random Urine Nonexposed adult | ≤4 mcg/g creat Biological Exposure Index (preshift) | ≤35 mcg/g creat Creatinine, Random Urine ≤6 Months | 2-28 mg/dL 7-11 Months | 2-31 mg/dL 1-2 Years | 2-110 mg/dL 3-8 Years | 2-130 mg/dL 9-12 Years | 2-160 mg/dL >12 Years Male | 20-320 mg/dL >12 Years Female | 20-275 mg/dL
    Quest Diagnostics catalog page

  • Molybdenum, Urine 10486

    Urine · Fasting not stated · Turnaround Set up: Sun-Fri

    Method and collection
    Method
    Colorimetry (C) • Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
    Preparation
    Avoid exposure to gadolinium-based contrast media for 48 hours prior to sample collection
    Quest Diagnostics catalog page

  • Nickel, Random Urine 5215

    Urine · Fasting not stated

    Method and collection
    Method
    Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
    Collection
    Avoid worksite collection. Collect urine in an acid-washed or metal-free plastic container.
    Reference notes
    Nickel, Random Urine Non-exposed Adult Male 1.2-6.2 mcg/g creat Female 2.2-10.2 mcg/g creat Creatinine, Random Urine ≤6 Months 2-28 mg/dL 7-11 Months 2-31 mg/dL 1-2 Years 2-110 mg/dL 3-8 Years 2-130 mg/dL 9-12 Years 2-160 mg/dL >12 Years Male 20-320 mg/dL >12 Years Female 20-275 mg/dL
    Quest Diagnostics catalog page

  • Oxalic Acid, Adult, Urine with Creatinine 10456

    Urine · Fasting not stated

    Method and collection
    Method
    Spectrophotometry (SP)
    Preparation
    Patient should refrain from taking excessive amounts of ascorbic acid or oxalate-rich foods (i.e. spinach, coffee, tea, chocolate, rhubarb) for at least 48 hours prior to the collection period
    Collection
    Add 2 mL 6N HCl per 100 mL urine. For pediatric patients, order test code 11222 - Oxalic Acid, Pediatric, Urine w/Creatinine.
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

  • Thallium, Urine 8835

    Urine · Fasting not stated

    Method and collection
    Method
    Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
    Collection
    Avoid worksite collection. Collect urine in an acid-washed or metal-free plastic container.
    Reference notes
    Thallium, Random Urine Non-exposed Adult | ≤0.4 mcg/g creat Creatinine, Random Urine ≤6 Months | 2-28 mg/dL 7-11 Months | 2-31 mg/dL 1-2 Years | 2-110 mg/dL 3-8 Years | 2-130 mg/dL 9-12 Years | 2-160 mg/dL >12 Years Male | 20-320 mg/dL >12 Years Female | 20-275 mg/dL
    Quest Diagnostics catalog page

  • VMA (Vanillylmandelic Acid), Random Urine 1710

    Urine · Fasting not stated · Turnaround Set up: Mon-Fri (p.m.); Report available: 4 days

    Method 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 (including use of nicotine patch), bananas, citrus fruits and strenuous exercise prior to collection.
    Collection
    Urine without preservative is acceptable if pH is below 6 and the sample is shipped frozen
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

  • Zinc, Random Urine 16502

    Urine · Fasting not stated

    Method and collection
    Method
    Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
    Collection
    Collect urine in an acid-washed or metal-free plastic container
    Quest Diagnostics catalog page

Panels that include this biomarker

  • 2,4-Dihydroxyglutarate, Urine with Creatinine 12730

    2 analytes · Urine · Fasting not stated

    Method and collection
    Method
    Liquid Chromatography/Tandem Mass Spectrometry (LC/MS/MS)
    Reference notes
    See Laboratory Report
    Quest Diagnostics catalog page

  • Antimony, Urine 264

    2 analytes · Urine · Fasting not stated · Turnaround Set up: Mon, Thurs; Report available: 1 day

    Method and collection
    Method
    Colorimetry (C) • Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
    Preparation
    Avoid exposure to gadolinium-based contrast media for 48 hours prior to sample collection
    Quest Diagnostics catalog page

  • Beryllium, Urine 6057

    2 analytes · Urine · Fasting not stated

    Method and collection
    Method
    Colorimetry (C) • Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
    Preparation
    Avoid exposure to gadolinium-based contrast media for 48 hours prior to sample collection
    Reference notes
    <0.5 mcg/L May be elevated in smokers
    Quest Diagnostics catalog page

  • Beta-2-Microglobulin, Random Urine with Creatinine 38994

    2 analytes · Urine · Fasting not stated

    Method and collection
    Method
    Immunoturbidimetric
    Preparation
    Patient should void bladder, then drink at least 500 mL of (approximately 17 oz) of water.
    Collection
    ⁠⁠⁠⁠⁠⁠⁠Beta-2 Microglobulin 1. Patient should void bladder, then drink at least 500 mL (approximately 17 oz) of water. 2. A urine sample should be collected within 1 hour. 3. Pour exactly 10 mL of random urine into a Quest Diagnostics Beta-2 Microglobulin Transport Tube (available through Client Supply). 4. Ship room temperature. 5. Alternatively, if the collection tubes are not available, pH of the specimen must be adjusted to between 6 and 8 using 1N NaOH prior to shipping. Beta-2 Microglobulin in urine is unstable in acidic urine (less than pH 6). Exactly 10 mL of urine in the Quest Diagnostics Beta-2 Microglobulin Transport Tube is required to achieve the required pH of between 6 and 8. Any volume of urine above or below 10 mL will result in a pH that is outside the acceptable range. Creatinine 1. Pour 10 mL of random unpreserved urine, collected in a plastic urine container into a plastic transport tube.
    Reference notes
    B2 Microglobulin/Creatinine Ratio ≤132 mcg/g creat Creatinine, Random Urine ≤6 Months 2-28 mg/dL 7-11 Months 2-31 mg/dL 1-2 Years 2-110 mg/dL 3-8 Years 2-130 mg/dL 9-12 Years 2-160 mg/dL >12 Years Male 20-320 mg/dL >12 Years Female 20-275 mg/dL
    Quest Diagnostics catalog page

  • Citric Acid, Urine with Creatinine 11004

    2 analytes · Urine · Fasting not stated

    Method and collection
    Method
    Spectrophotometry (SP)
    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.

Interpret your own results with a licensed clinician, or track your lab history and health goals in Aumnivida.

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