Alpha-2-Macroglobulin

Test Code

228

CPT Codes
83883

Preferred Specimen

1 mL serum

Patient Preparation
Overnight fasting is preferred

Minimum Volume

0.5 mL

Transport Container

Transport tube

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: 24 hours
Refrigerated: 7 days
Frozen: 90 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Received room temperature

Methodology
Fixed Rate Time Nephelometry

Setup Schedule

a.m. Tues-Sat

Report Available

3-4 days

Reference Range

106-279 mg/dL

Clinical Significance

Alpha-2-Macroglobulin is produced in the liver. Increased concentrations are associated with patients with some chronic liver diseases, nephrotic syndrome, and diabetes. Decreased concentrations are associated with patients with pancreatitis, rheumatoid arthritis, and multiple myeloma.

Performing Laboratory

Quest Diagnostics Nichols Institute-San Juan Capistrano, CA

33608 Ortega Highway

San Juan Capistrano, CA 92675-2042

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.