Alpha-2-Macroglobulin
0050005
Ordering Recommendation
 
Mnemonic
A2M
Methodology
Quantitative Nephelometry
Performed
Wed, Sat
Reported
1-5 days  
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
Specimen Required
Patient Preparation
  
Collect
Serum separator tube.  
Specimen Preparation
Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.4 mL) Also acceptable: CSF or pleural fluid (centrifuge and separate to remove cellular material).  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
Hemolyzed specimens.  
Remarks
  
Stability
After separation from cells: Ambient: 8 hours; Refrigerated: 8 days; Frozen: 1 year (if frozen within 24 hours). Avoid repeated freeze/thaw cycles. Ambient: 8 hour sample prep time.  
Reference Interval
131-293 mg/dL  
Interpretive Data
 
Note
 
CPT Code(s)
83883
Components
Component Test Code*Component Chart Name
0050005Alpha-2-Macroglobulin
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • a2-macrogloboulin
  • a2M/a2M
  • AMG, macroglobulin
  • Macroglobulin, Alpha-2