Aluminum, 24 Hour, Urine
Use
Monitoring aluminum exposure; preferred matrix for assessment of exposure in patients with normal kidney function since aluminum is rapidly filtered by kidneys; useful for monitoring metallic prosthetic implant wear; not an acceptable substitute for serum aluminum measurements and not recommended for routine aluminum screening ([mayocliniclabs.com](https://www.mayocliniclabs.com/test-catalog/overview/8828?utm_source=openai)).
Special Instructions
Ordering guidance: the recommended test for routine aluminum screening is AL / Aluminum, Serum ([mayocliniclabs.com](https://www.mayocliniclabs.com/test-catalog/overview/8828?utm_source=openai)). Necessary information: 24‑Hour volume (in milliliters) is required ([mayocliniclabs.com](https://www.mayocliniclabs.com/test-catalog/overview/8828?utm_source=openai)).
Limitations
Interference: high concentrations of gadolinium and iodine–containing contrast media may interfere with ICP‑MS tests; specimen should not be collected for 96 hours post‑administration ([mayocliniclabs.com](https://www.mayocliniclabs.com/test-catalog/overview/8828?utm_source=openai)).
Methodology
Mass Spectrometry (LC-MS/MS)
Biomarkers
LOINC Codes
- 13362-9
- 26707-0
- 26707-0
Result Turnaround Time
2-8 days
Related Documents
For more information, please review the documents below
Specimen
Urine
Volume
10 mL
Minimum Volume
0.3 mL
Container
Clean, plastic urine container with no metal cap or glued insert; submission: plastic urine tube or clean, plastic aliquot container with no metal cap or glued insert
Collection Instructions
Collect urine for 24 hours; within 4 hours of completion, refrigerate specimen; see Metals Analysis Specimen Collection and Transport
Patient Preparation
If gadolinium‑ or iodine‑containing contrast media administered, delay collection for 96 hours
Causes for Rejection
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 28 days |
| Refrigerated | 28 days |
| Frozen | 28 days |