Chromium, Urine
Test code
CPT code(s)*
Test resources
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Details
Includes
Creatinine
Methodology
Colorimetric (C) • Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
Assay category
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.
Specimen requirements | |
|---|---|
| Patient preparation | None Specified |
| Preferred specimen(s) | 2 mL urine collected in an acid-washed or metal-free plastic urine container |
| Minimum volume | 0.5 mL |
| Collection instructions | Note: Tests performed on a specimen submitted in a non-trace element tube/container (non acid-washed) 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 resubmission with a trace element tube/container is recommended. |
| Transport container | Acid-washed or metal-free container |
| Transport temperature | Room temperature |
| Specimen stability | Room temperature: 4 days Refrigerated: 14 days Frozen: 30 days |
Reference Range(s)
| Chromium, Urine | <2.0 ng/mL |
| Chromium/Creatinine Ratio | <5.0 mcg/g creat |
ACGIH Biological Exposure Index
| Increase during shift | 10 mcg/g cr |
| End-of-shift at end-of-work-week | 30 mcg/g cr |
Creatinine, Random Urine
| ≤6 Months | 2-28 mg/dL | |
| 7-11 Months | 2-31 mg/dL | |
| 1-2 Years | 2-110 mg/dL | |
| 3-8 Years | 2-130 mg/dL | |
| 9-12 Years | 2-160 mg/dL | |
| >12 Years Male | 20-320 mg/dL | |
| >12 Years Female | 20-275 mg/dL | |
Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
*The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.
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