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HelpTest ID HMSU Heavy Metals Screen, 24 Hour, Urine
Profile Information
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| ASHMS | Arsenic, 24 Hr, U | Yes, (order ASU) | Yes |
| PBS | Lead, 24 Hr, U | Yes, (order PBU) | Yes |
| CDHMU | Cadmium, 24 Hr, U | Yes, (order CDU) | Yes |
| HGHMS | Mercury, 24 Hr, U | Yes, (order HGU) | Yes |
Special Instructions
Method Name
Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)
Reporting Name
Heavy Metals Scrn, 24 Hr, USpecimen Type
UrineCollection Container/Tube: Clean, plastic aliquot container with no metal cap or glued insert
Submission Container/Tube: Plastic, 10-mL urine tube (Supply T068)
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. Patient should not eat seafood for a 48-hour period prior to start of collection.
4. 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.
Urine Preservative Collection Options
|
Ambient |
No |
|
Refrigerated |
Preferred |
|
Frozen |
Yes |
|
6N HCl |
Yes |
|
50% Acetic Acid |
Yes |
|
Na2CO3 |
No |
|
Toluene |
Yes |
|
6N HNO3 |
No |
|
Boric Acid |
No |
|
Thymol |
No |
Specimen Minimum Volume
2 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Refrigerated (preferred) | 7 days |
| Frozen | 7 days |
Clinical Information
See individual test descriptions for:
-ASHMS / Arsenic, 24 Hour, Urine
-CDHMU / Cadmium, 24 Hour, Urine
-PBS / Lead, 24 Hour, Urine
-HGHMS / Mercury, 24 Hour, Urine
Reference Values
ARSENIC
0-35 mcg/specimen
Reference values apply to all ages.
LEAD
0-4 mcg/specimen
Reference values apply to all ages.
CADMIUM
0-15 years: not established
≥16 years: 0.0-1.3 mcg/specimen
MERCURY
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.
Cautions
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.
Day(s) Performed
Monday through Friday; 7 p.m., Saturday; 2 p.m.
Report Available
1 dayPerforming Laboratory
Mayo Medical Laboratories in Rochester
Test Classification
See Individual Test IDsCPT Code Information
82175-Arsenic
82300-Cadmium
83655-Lead
83825-Mercury