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Aluminum, Urine

CPT 82108; 82570
Synonyms
  • Al, Urine

Test Details

Methodology

Inductively coupled plasma/mass spectrometry (ICP/MS)

Result Turnaround Time

2 - 4 days

Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.

Related Information

Related Documents

Test Includes

Aluminum, urine; creatinine, urine; aluminum:creatinine ratio; aluminum, urine (24-hour)

Use

Monitor patients for prior and ongoing exposure to aluminum. Patients at risk include:

• Infants on parenteral fluids, particularly parenteral nutrition

• Burn patients through administration of intravenous albumin, particularly with coexisting renal failure

• Adult and pediatric patients with chronic renal failure who accumulate aluminum readily from medications and dialysate

• Adult parenteral nutrition patients (less so, recently)

• Patients with industrial exposure

Monitor dialysate and water to prepare dialysate to prevent aluminum toxicity in dialysis patients.

Special Instructions

Do not use preservative. Preservatives used for routine analysis may contain mercuric oxide (ie, Stabilur), which interferes with all metal testing. If both urinalysis and metal testing are ordered, please submit a separate urine specimen (containing no additive) for the metal testing.

Limitations

This test was developed and its performance characteristics determined by LabCorp. It has not been cleared or approved by the Food and Drug Administration.

Footnotes

1. Lauwerys RR, Hoet P, Industrial Chemical Exposure: Guidelines for Biological Monitoring, 2nd ed, Boca Raton, FL: Lewis Publishers, 1993, 290.

Specimen Requirements

Specimen

Urine (random or 24-hour)

Volume

5 mL

Minimum Volume

1.5 mL

Container

Plastic urine container, no preservative

Collection Instructions

Optional protocol: Instruct the patient to void at 8 AM and discard the specimen. Then collect all urine including the final specimen voided at the end of the 24-hour collection period (ie, 8 AM the next morning). Avoid contact with metal during collection. Screw the lid on securely.

Stability Requirements

Temperature

Period

Room temperature

14 days

Refrigerated

14 days

Frozen

14 days

Freeze/thaw cycles

Stable x3

Reference Range

Environmental exposure: 5−30 μg/L, 0−32 μg/24 hours

Aluminum:creatinine ratio: <50 μg/g creatinine

Occupational exposure: 150 μg/g creatinine (collected at end of shift)1

Storage Instructions

Maintain specimen at room temperature.

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
071555 Aluminum, Urine 071557 Aluminum, Urine ug/L 6929-4
071555 Aluminum, Urine 723280 Creatinine(Crt),U g/L 2161-8
071555 Aluminum, Urine 071560 Aluminum/Crt Ratio ug/g creat 13470-0
071555 Aluminum, Urine 071559 Aluminum,Urine 24 Hr ug/24 hr 26707-0
Order Code071555
Order Code NameAluminum, Urine
Order Loinc
Result Code071557
Result Code NameAluminum, Urine
UofMug/L
Result LOINC6929-4
Order Code071555
Order Code NameAluminum, Urine
Order Loinc
Result Code723280
Result Code NameCreatinine(Crt),U
UofMg/L
Result LOINC2161-8
Order Code071555
Order Code NameAluminum, Urine
Order Loinc
Result Code071560
Result Code NameAluminum/Crt Ratio
UofMug/g creat
Result LOINC13470-0
Order Code071555
Order Code NameAluminum, Urine
Order Loinc
Result Code071559
Result Code NameAluminum,Urine 24 Hr
UofMug/24 hr
Result LOINC26707-0