Test Overview
Test Methodology

Triple-Quadruple Inductively Coupled Plasma Mass Spectrometry

Test Usage

Useful for detecting occupational exposure to chromium.

Reference Range *

<0.4 ng/mL

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Monday through Friday
Analytic Time

2 - 5 days

Soft Order Code
CR-S
MiChart Code
Chromium, Serum
Synonyms
  • Cr (Chromium), Serum
Laboratory
Sendout Testing
Reference Laboratory
Mayo CRS
Section
Sendout Testing
Specimen Requirements
Collection Instructions

Royal blue (trace element) and/or Metal-Free aliquot tubes are available from MLabs (800-862-7284). Collect blood in a royal blue top (trace element) tube with no preservative (serum). Allow specimen to clot for 30 minutes, centrifuge, and carefully pour serum into a metal-free aliquot tube, avoiding transfer of the cellular components of blood. Do not insert a pipet into the serum to transfer and do not ream the specimen with a wooden stick to assist with the transfer. Do not collect specimens for trace metal testing from patients who have received gadolinium-, iodine-, or barium-containing contrast material within the past 96 hours. These metal-based contrast agents are known to interfere with laboratory techniques commonly used for trace metals analysis.

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

1.6 mL serum

Minimum Volume

0.5 mL serum

Storage Temperature
Refrigerated preferred, ambient or frozen acceptable
Additional Information

Test performed by Mayo Clinic Laboratories.

Billing
CPT Code
82495
Fee Code
32072
LOINC
5622-6
NY State Approved
No