Chromium, Serum

Test Code

CHROM

Quest Code

5248

Alias/See Also

CPT Codes
82495

Preferred Specimen

2 mL serum collected in a no additive (royal blue-top) tube

Minimum Volume

1 mL

Other Acceptable Specimens

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.

Instructions

Draw one royal blue-top tube of blood and discard. Draw second royal-blue top tube. Allow to clot in an upright position. Centrifuge and pour (do not pipette) the serum into a metal-free tube.

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: 5 days
Refrigerated: 10 days
Frozen: 21 days

Methodology
Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Setup Schedule

Sets up 3 days a week.

Reference Range

≤1.4 mcg/L

Clinical Significance

Occupational exposure and exposure to environmental contamination of Chromium may lead to toxicity. The need for Chromium supplements is unproven. Supplements taken in excess may also lead to Chromium toxicity.

Performing Laboratory
Quest Diagnostics Valencia Nichols Institute
27027 Tourney Road
Valencia, CA 91355-5386

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.