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HelpTest Code A2M Alpha-2-Macroglobulin, Serum
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Reporting Name
Alpha-2-Macroglobulin, SSpecimen Type
SerumSpecimen Required
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1 mL
Collection Instructions: Centrifuge and aliquot serum into plastic vial
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | Reject |
| Gross icterus | OK |
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 21 days | |
| Frozen | 28 days | ||
| Ambient | 72 hours |
Specimen Minimum Volume
0.5 mL
Day(s) Performed
Monday through Friday
Specimen Retention Time
14 daysReport Available
1 to 3 daysReference Values
≤18 years: 178-495 mg/dL
>18 years: 100-280 mg/dL
Useful For
Evaluating patients with nephrotic syndrome and pancreatitis
CPT Code Information
83883
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| A2M | Alpha-2-Macroglobulin, S | 1835-8 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| A2M | Alpha-2-Macroglobulin, S | 1835-8 |
Forms
If not ordering electronically, complete, print, and send a Gastroenterology and Hepatology Test Request (T728) with the specimen.