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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
ARUP Consult®
Disease Topics
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 NameLOINC
0050005Alpha-2-Macroglobulin29944-6
* 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