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Chromium, Serum
Test Code5248
CPT Codes
82495
Preferred Specimen
2 mL serum collected in a no additive (royal blue-top) tube
Minimum Volume
1 mL
Instructions
Draw one (royal blue-top) tube of blood and discard. Draw second (royal blue-top) tube. Allow blood to clot in an upright position. Centrifuge and pour (do not pipette) the serum into a metal-free tube.
Tests performed on a specimen submitted in a nontrace element tube or nonacid-washed/nonmetal-free container may not accurately reflect the patient's level. If a nontrace element tube/container is received, it will be accepted for testing; however, elevated results are reported with the message that resubmission with a trace element tube/container is recommended.
Tests performed on a specimen submitted in a nontrace element tube or nonacid-washed/nonmetal-free container may not accurately reflect the patient's level. If a nontrace element tube/container is received, it will be accepted for testing; however, elevated results are reported with the message that resubmission with a trace element tube/container is recommended.
Transport Temperature
Refrigerated (cold packs)
Specimen Stability
Room temperature: 5 days
Refrigerated: 10 days
Frozen: 21 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 the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Set up: Sun-Fri; Report available: 1 day
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.
