Alternative Complement Pathway Functional, Serum
Test code
CPT code(s)*
Test resources
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Details
Methodology
Enzyme Linked Immunosorbent Assay (ELISA)
Assay category
This test uses a reagent or kit labeled by the manufacturer as research use only. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the FDA.
Alternative name(s)
AH50
Specimen requirements | |
|---|---|
| Patient preparation | Fasting preferred |
| Preferred specimen(s) | 1 mL serum |
| Minimum volume | 0.2 mL |
| Collection instructions | 1. Immediately after specimen collection, place the tube on wet ice and allow specimen to clot. 2. Centrifuge at 4° C and aliquot serum into a plastic vial. 3. Freeze specimen within 30 minutes of centrifugation. Sample must be placed on dry ice if not frozen immediately. Note: If a refrigerated centrifuge is not available, it is acceptable to use a room temperature centrifuge, provided the specimen is kept on ice before centrifugation, and immediately afterward, the serum aliquoted and frozen. |
| Transport container | Transport tube |
| Transport temperature | Frozen |
| Specimen stability | Room temperature: Unacceptable Refrigerated: Unacceptable Frozen: 14 days |
Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
*The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.
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