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HelpTest Code TIU24 Titanium, 24 Hour, Urine
Shipping Instructions
Ship specimen on ice.
Necessary 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 either gadolinium- or iodine-containing contrast media has been administered, a specimen should not be collected for 96 hours.
Supplies: Urine Tubes, 10 mL (T068)
Container/Tube: Plastic, 10-mL urine tube or clean, plastic aliquot container with no metal cap or glued insert
Specimen Volume: 10 mL
Collection Instructions:
1. Collect urine for 24 hours.
2. Leave specimen ambient until received at the collection center.
3. Weigh urine for total volume.
4. Pour off aliquot, freeze, and send to laboratory frozen.
4. 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.
Secondary ID
614613Useful For
Monitoring exposure and elimination of titanium in a 24 hour urine specimen
Special Instructions
Method Name
Triple-Quadrupole Inductively Coupled Plasma-Mass Spectrometry (ICP-MS/MS)
Specimen Type
UrineSpecimen Minimum Volume
0.3 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Frozen | 28 days |
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Reference Values
0-17 years: Not established
≥18 years: <1 mcg/24 h
Interpretation
Elevated concentrations of urinary titanium have been reported after documented exposures.
Method Description
Titanium in urine is analyzed by inductively coupled plasma triple-quadrupole mass spectrometry in mass shift mode using ammonia as a reaction gas, gallium as an internal standard, and a salt matrix calibration. (Unpublished Mayo method)
Day(s) Performed
Wednesday
Report Available
1 to 3 daysSpecimen Retention Time
14 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
83018
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| TIU24 | Titanium, 24 HR, U | 29929-7 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 614613 | Titanium, 24 HR, U | 29929-7 |
| TIME8 | Collection Duration | 13362-9 |
| VL73 | Urine Volume | 3167-4 |