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HelpTest Code MNU Manganese, 24 Hour, Urine
Reporting Name
Manganese, 24 Hr, UUseful For
Monitoring manganese exposure using 24 hour urine collections
Nutritional monitoring
Method Name
Triple-Quadrupole Inductively Coupled Plasma-Mass Spectrometry (ICP-MS/MS)
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
UrineNecessary Information
24-Hour volume (in milliliters) is required.
Specimen Required
Patient Preparation: High concentrations of gadolinium and iodine are known to interfere with most metal tests. If gadolinium- or iodine-containing contrast media has been administered, a specimen should not be collected for 96 hours.
Supplies: Urine Tubes, 10 mL (T068)
Collection Container/Tube: Clean, plastic urine container with no metal cap or glued insert
Submission Container/Tube: Plastic, 10-mL urine tube or clean, plastic aliquot container with no metal cap or glued insert
Specimen Volume: 0.3 mL
Collection Instructions:
1. Collect urine for 24 hours.
2. Refrigerate specimen within 4 hours of completion of 24-hour collection.
3. See Metals Analysis Specimen Collection and Transport for complete instructions.
Additional Information: See Urine Preservatives-Collection and Transportation for 24-Hour Urine Specimens for multiple collections.
Specimen Minimum Volume
0.2 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Refrigerated (preferred) | 28 days | |
| Frozen | 28 days | ||
| Ambient | 7 days |
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Special Instructions
Reference Values
0-17 years: Not established
≥18 years: <4.0 mcg/24 hr
Day(s) Performed
Tuesday
CPT Code Information
83785
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| MNU | Manganese, 24 Hr, U | 8203-2 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 8080 | Manganese, 24 Hr, U | 8203-2 |
| TM26 | Collection Duration | 13362-9 |
| VL24 | Urine Volume | 3167-4 |