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HelpTest Code ASCU Arsenic/Creatinine Ratio, Urine
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
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.
Reporting Name
Arsenic/Creatinine Ratio, USpecimen Type
UrineSpecimen Minimum Volume
3 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Refrigerated (preferred) | 28 days | |
| Frozen | 28 days | ||
| Ambient | 72 hours |
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.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
Specimen Retention Time
14 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 |
Day(s) Performed
Monday through Friday
Report Available
2 to 4 daysCPT Code Information
82175