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HelpTest ID COM Complement, Total, Serum
Useful For
Detection of individuals with an ongoing immune process
First-tier screening test for congenital complement deficiencies
Method Name
Automated Liposome Lysis Assay
Reporting Name
Complement, Total, SSpecimen Type
SerumSpecimen Required
Patient Preparation:
Fasting: 12 hours, preferred but not 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:
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 5 mL plastic vial.
3. Within 30 minutes of centrifugation, freeze specimen. Specimen 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 is aliquoted and frozen.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Frozen | 28 days |
Reference Values
30-75 U/mL
Day(s) Performed
Monday through Friday
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
86162
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| COM | Complement, Total, S | 4532-8 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| COM | Complement, Total, S | 4532-8 |