Test Overview
Test Methodology
Dynamic Reaction Cell-Inductively Coupled-Mass Spectrometry
Test Usage
Useful for detecting occupational exposure to chromium.
Reference Range *
<8.0 mcg/24 hours
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
Days Set Up
Monday - Friday
Analytic Time
1 - 4 days
Soft Order Code
CR-U
MiChart Code
Chromium, Urine
Synonyms
- CHROMIUM, URINE
- Cr (Chromium), Urine
- CR-U
Laboratory
Sendout
Reference Laboratory
Mayo CR-U (8593)
Section
Special Testing
Specimen Requirements
Collection Instructions
Collect 24 hour urine in a clean, plastic container with no metal cap or glued insert and no preservative. Aliquot urine into a clean, plastic container with no metal cap or glued insert and refrigerate within 4 hours of completion of collection. Record 24 hour urine volume and collection dates/times on the request form. Collection must take place prior to or 48 hours after administering gadolinium-containing contrast media.
Contraindications
High concentrations of gadolinium and iodine are known to interfere with most metals tests. If either gadolinium- or iodine-containing contrast media has been administered, a specimen should not be collected for 96 hours.
Normal Volume
10 mL aliquot of 24 hour urine collection
Minimum Volume
5 mL aliquot of 24 hour urine collection
Additional Information
Test sent to Mayo Medical Laboratories.
Billing
CPT Code
82495
Fee Code
32073
LOINC
5624-2