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HelpTest ID ASCU Arsenic/Creatinine Ratio, Urine
Method Name
Only orderable as part of profile. For more information see:
-ASUCR / Arsenic/Creatinine Ratio, with Reflex, Random, Urine
-HMUCR / Heavy Metal/Creatinine Ratio, with Reflex, Random, Urine
Triple-Quadrupole Inductively Coupled Plasma Mass Spectrometry (ICP-MS/MS)
Specimen Required
Only orderable as part of profile. For more information see:
-ASUCR / Arsenic/Creatinine Ratio, with Reflex, Random, Urine
-HMUCR / Heavy Metal/Creatinine Ratio, with Reflex, Random, Urine
Reporting Name
Arsenic/Creatinine Ratio, USpecimen Type
UrineSpecimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Refrigerated (preferred) | 28 days |
| Frozen | 28 days | |
| Ambient | 72 hours |
Report Available
2 to 4 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| ASCU | Arsenic/Creatinine Ratio, U | 13463-5 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 608900 | Arsenic/Creatinine Ratio, U | 13463-5 |
| 608901 | Total Arsenic Concentration | 5586-3 |
Useful For
Screening for arsenic exposure using random urine specimens
Testing Algorithm
If total arsenic concentration is 10 mcg/L or greater, then speciation will be performed at an additional charge.
Day(s) Performed
Monday through Friday
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
82175
Specimen Minimum Volume
3 mL
Reference Values
Only orderable as part of profile. For more information see:
-ASUCR / Arsenic/Creatinine Ratio, with Reflex, Random, Urine
-HMUCR / Heavy Metal/Creatinine Ratio, with Reflex, Random, Urine
0-17 years: Not established
≥18 years: <24 mcg/g creatinine