Chromium, Urine Test (1261U)
| Analysis Code |
1261U |
| Test Name |
Chromium, Urine |
| Test Includes |
Chromium (Creatinine corrected) [ICP/MS], Chromium [ICP/MS], Creatinine [Colorimetry] |
| Compound Synonym(s) |
Cr |
| Purpose |
Exposure Monitoring/Investigation |
| Category |
Metal/Element, Biological Marker (Renal) |
| Method(s) |
Colorimetry (C)
Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) |
| Specimen Requirements |
4 mL Urine |
| Transport Temperature |
Refrigerated |
| Specimen Container |
Plastic container (Acid washed or Trace metal-free) |
| Special Handling |
Unpreserved urine should be refrigerated immediately and analyzed within 1 week of collection. Acceptable preservatives include: Trace Metal Free Hydrochloric Acid or Nitric Acid (0.1 mL of 12M acid/10 mL urine). Avoid exposure to gadolinium-based contrast media for 48 hours prior to sample collection. |
| Light Protection Required |
Not Required |
| Stability |
Room Temperature: 7 day(s)
Refrigerated: 7 day(s)
Frozen (-20 °C): 3 day(s) |
| Rejection Criteria |
Received Frozen. |
| Day(s) Test Set-up |
[Colorimetry] Monday-Saturday 2nd Shift 1 day
[ICP/MS] Tuesday Thursday 1 day |
| Suggested CPT Code |
[Colorimetry] 82570
[ICP/MS] 82495 |
Reflex Testing
(when required, addl' fee may apply) |
6022U - Specific Gravity Confirmation, Urine |
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