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

Cystine, Quant, Ur, Urine

Primary unit
mg/24 hr
LOINC codes
2179-0
Tests that measure Cystine, Quant, Ur, Urine
Labcorp 2

Tests

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

Labcorp 2 tests

Panels that include this biomarker

  • Cystine, Quantitative, Urine 700195

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

    Method and collection
    Method
    Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
    Collection
    24-hour urine: 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). The urine container may be kept at room temperature or refrigerated during collection. Measure and record total urine volume. Mix well, aliquot, and freeze the aliquot for storage and shipping. Label container with patient's name, date of birth, date and time collection started, and date and time collection completed.
    Reference notes
    2.1−58.0 mg/24 hours
    Labcorp catalog page

  • Litholink 24-Hour Urine Cystine Profile 910245

    13 analytes · Urine · Fasting not stated · Turnaround 4 - 8 days

    Method and collection
    Method
    Cystine capacity, calcium, creatinine, citrate, urea nitrogen, phosphorus: Colormetric Sulfate: Turbidity with barium precipitation Sodium: Ion specific electrode pH: Potentiometry
    Collection
    Included preservative functions as a volume marker must be added to the main collection container at the beginning of collection and then return a 40 mL aliquot of the 24-hour urine per collection. Full 24-hour collection: Void and discard first urine and continue to collect for 24-hour period from that void time. All samples must be immediately returned to the lab using the prepaid FedEx shipper.
    Labcorp 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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