Posted Date
Effective Date
Update Type
Specimen collection or handling and/or storage changed
Order Code
Varies
SPECIMEN COLLECTION AND HANDLING UPDATE
Specimen collection and handling requirements for the following assays will be updated effective January 30, 2025.
| Test Name | Order Code | Mayo Test ID |
|---|---|---|
| C1Q Complement, Functional, Serum | C1QFX | C1QFX |
| C2 Complement, Functional, Serum with Reflex | C2 | C2 |
| C2 Complement, Functional, Serum | MMLR | C2FXN |
| C3 Complement, Functional, Serum | MMLR | C3FX |
| C4 Complement, Functional, Serum | MMLR | C4FX |
| C5 Complement, Functional, Serum | MMLR | C5FX |
| C6 Complement, Functional, Serum | C6P | C6FX |
| C7 Complement, Functional, Serum | C7 | C7FX |
| C8 Complement, Functional, Serum | MMLR | C8FX |
| C9 Complement, Functional, Serum | C9 | C9FX |
| Complement, Total Alternative Pathway (AH50), Functional | AH50 | AH50 |
Collection Instructions: A fasting specimen is preferred but not required. Collect specimen in an SST (preferred) or red top tube. Immediately after drawing specimen, place the tube on wet ice and allow specimen to clot. Centrifuge at 4 degrees C, aliquot 1 mL of serum into a plastic vial and freeze within 30 minutes of collection. (Note: if a refrigerated centrifuge is not available, it is acceptable to use a room temperature centrifuge, provided the sample is kept on ice before centrifugation, and immediately afterward, the serum is aliquoted and frozen).