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HelpTest Code SQ UHG24M, EPIC LAB408 Mercury, 24 Hour, Urine
Additional Codes
| Mayo Test ID |
|---|
| HGU |
Reporting Name
Mercury, 24 Hr, UUseful For
Detecting mercury toxicity
Performing Laboratory
Mayo Medical Laboratories in Rochester
Specimen Type
UrineSpecimen Required
Collection Container/Tube: Clean, plastic urine container with no metal cap or glued insert
Submission Container/Tube: Plastic, 10-mL urine tube (T068) or a clean, plastic aliquot container with no metal cap or glued insert
Specimen Volume: 10 mL
Collection Instructions:
1. Collect urine for 24 hours.
2. Refrigerate specimen within 4 hours of completion of 24-hour collection.
3. See Trace Metals Analysis Specimen Collection and Transport in Special Instructions for complete instructions.
Additional Information:
1. 24-Hour volume is required.
2. See Urine Preservatives in Special Instructions for multiple collections.
3. High concentrations of gadolinium and iodine are known to interfere with most metals tests. If either gadolinium- or iodine-containing contrast media has been administered, a specimen should not be collected for 96 hours.
Specimen Minimum Volume
2 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Refrigerated (preferred) | 7 days |
| Frozen | 7 days |
Special Instructions
Reference Values
0-15 years: not established
≥16 years: 0-9 mcg/specimen
Toxic concentration: >50 mcg/specimen
The concentration at which toxicity is expressed is widely variable between patients. 50 mcg/specimen is the lowest concentration at which toxicity is usually apparent.
Day(s) and Time(s) Performed
Monday through Friday; 7 p.m., Saturday; 2 p.m.
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.CPT Code Information
83825
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| HGU | Mercury, 24 Hr, U | 6693-6 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 8592 | Mercury, 24 Hr, U | 6693-6 |
| TM5 | Collection Duration | 13362-9 |
| VL3 | Urine Volume | 3167-4 |
| 856 | Hg Concentration | 21383-5 |
Reject Due To
|
Hemolysis |
NA |
|
Lipemia |
NA |
|
Icterus |
NA |
|
Other |
NA |
Method Name
Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)