Test Directory

Test Code
ALMN
Test Name
Aluminum
CPT Codes
82108
Expected Turnaround Time
2 - 4 days
Clinical Utility

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.

Specimen and Container Info

Specimen Type: Serum

Alternate Specimen Type: Plasma

Collection Container: Royal Blue (No Additive)

Alternate Collection Container: Royal Blue (EDTA)

Desired Specimen Volume: 7 mL

Collection Instructions
  1. Collect a royal blue (no additive) tube via venipuncture.
Processing and Submission Instructions
  1. Separate serum from cells immediately after collection.
  2. Transfer 7 mL of serum to a certified metal free aliquot tube(s).
Transport Instructions

Transport to the laboratory at room temperature.  

Stability Requirements

Room Temperature

14 days

Refrigerated

14 days

Frozen

14 days

Freeze/Thaw Cycles

 Stable x3

Causes for Rejection
  • Royal blue-top tube not used in specimen collection
  • Certified metal-free aliquot tube not submitted
Methodology
Inductively Coupled Plasma - Mass Spectrometry (ICP- MS)
Reference Intervals

See patient report.

Limitations

Serum levels rise and fall after each dose of aluminum-containing phosphate binder or sucralfate. If renal function is normal, renal clearance of aluminum is prompt, with urine levels rising quickly after a course of aluminum-containing antacid is begun, and with levels persisting elevated for over a week. Urine levels rise after a dose of deferoxamine given for any reason. The degree of rise in serum aluminum after deferoxamine is regarded as reflecting total body aluminum burden.

Reference Lab
Labcorp Of America Holdings
Testing Schedule
Monday-Friday