Test Code C1Q Complement C1q, Serum
Reporting NameComplement C1q, S
Assessment of an undetectable total complement (CH50) level
Diagnosing congenital C1 (first component of complement) deficiency
Diagnosing acquired deficiency of C1 inhibitor
Performing LaboratoryMayo Medical Laboratories in Rochester
Preferred: Red top
Acceptable: Serum gel
Specimen Volume: 1 mL
Collection Instructions: Fasting.
Specimen Minimum Volume
Specimen Stability Information
|Serum||Refrigerated (preferred)||21 days|
Day(s) and Time(s) Performed
Monday through Saturday; Continuously until 3 p.m.
Test ClassificationThis test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.
CPT Code Information
LOINC Code Information
|Test ID||Test Order Name||Order LOINC Code|
|C1Q||Complement C1q, Serum||4478-4|
|Result ID||Test Result Name||Result LOINC Code|
|C1Q||Complement C1q, S||4478-4|