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HelpTest ID ALUCR Aluminum/Creatinine Ratio, Random, Urine
Ordering Guidance
The recommended test for routine aluminum screening is AL / Aluminum, Serum
For monitoring aluminum exposure or metallic prosthetic implant wear, the preferred test is ALU / Aluminum, 24 Hour, Urine.
Specimen Required
Patient Preparation: High concentrations of gadolinium and iodine are known to potentially interfere with most inductively coupled plasma mass spectrometry-based 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)
Collection Container/Tube: Clean, plastic urine collection container with no metal cap or glued insert
Submission Container/Tube: Plastic urine tube or clean, plastic aliquot container with no metal cap or glued insert
Specimen Volume: 3 mL
Collection Instructions:
1. Collect a random urine specimen.
2. See Metals Analysis Specimen Collection and Transport for complete instructions.
Secondary ID
610838Useful For
Monitoring aluminum exposure when a 24-hour urine cannot be collected
Monitoring metallic prosthetic implant wear when a 24-hour urine cannot be collected
This test is not an acceptable substitute for serum aluminum measurements and is not recommended for routine aluminum screening.
Special Instructions
Specimen Type
UrineSpecimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Refrigerated (preferred) | 28 days |
| Frozen | 28 days | |
| Ambient | 14 days |
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Reference Values
ALUMINUM
0-17 years: Not established
≥18 years: <14 mcg/g creatinine
CREATININE, RANDOM
0-17 years: Not established
≥18 years: 16-326 mg/dL
Day(s) Performed
Monday
Report Available
2 to 8 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
82570
82108