Aluminum, 24-Hour Urine [14451X]

Test Code
14562

Preferred Specimen
7 mL aliquot of an unpreserved, 24-hour urine collected in an acid-washed, metal-free leak-proof container

Minimum Volume
3 mL

Instructions
Collect without preservatives. Record total volume on specimen container and on test requisition.

Transport Temperature
Room temperature

Specimen Stability
Room temperature: 5 days
Refrigerated: 14 days
Frozen: 30 days

Methodology
Atomic Spectroscopy (AS)

This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by the U.S. Food and Drug Administration. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Limitations
This measure is very sensitive to aluminum containing medications, e.g., aluminum-containing antacids, and may continue to test as elevated for a prolonged period of time after the medication is stopped.

Reference Range
<36 mcg/24 h

Clinical Significance
Individuals undergoing hemodialysis are at risk for aluminum toxicity. Prolonged accumulation may cause encephalkopathy, and vitamin d-resistant osteomalacia. Also workers exposed to high levels or to long-term low levels of aluminum dust are at increased risk of toxicity.

Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.