Test Overview
Test Methodology

Triple-Quadrupole Inductively Coupled-Mass Spectrometry (ICP-MS/MS)

Test Usage

Useful for detecting occupational exposure to chromium.

Reference Range *

For adults > or = 18: 0.1 - 1.2 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
Analytic Time

2 - 5 days

Soft Order Code
CR-U
MiChart Code
Chromium, Urine
Synonyms
  • Cr (Chromium), Urine
Laboratory
Sendout
Reference Laboratory
Mayo CRU
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

0.4 mL aliquot of 24 hour urine collection

Storage Temperature
Refrigerated preferred, ambient or frozen acceptable
Additional Information

Test performed by Mayo Clinic Laboratories.

Billing
CPT Code
82495
Fee Code
32073
LOINC
5624-2
NY State Approved
No