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HelpTest Code C5B9 SC5b-9 Level Terminal Complement Complex, Plasma
Specimen Required
Patient Preparation:
1. Fasting preferred.
2. Do not collect a specimen for the 48 hours following a plasma exchange.
Collection Container/Tube: Light-blue top (3.2% sodium citrate)
Submission Container/Tube: Plastic vial
Specimen Volume: 1.5 mL
Collection Instructions:
1. Immediately after specimen collection, place the tube on wet ice.
2. Centrifuge between 1000-2000 x g for 10 minutes at 4° C and aliquot plasma into plastic vial.
3. Freeze specimen within 30 minutes.
Useful For
Detecting increased complement activationReporting Name
SC5b-9 Complement, PSpecimen Type
Plasma Na CitSpecimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Plasma Na Cit | Frozen | 14 days |
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | Reject |
| Gross icterus | OK |
Reference Values
≤250 ng/mL
Day(s) Performed
Tuesday, Friday
Report Available
3 to 5 daysSpecimen Retention Time
14 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
86160
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| C5B9 | SC5b-9 Complement, P | 93244-2 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 616921 | SC5b-9 Complement, P | 93244-2 |