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Test Code C1Q Complement C1q, Serum

Reporting Name

Complement C1q, S

Useful For

Assessment of an undetectable total complement (CH50) level

 

Diagnosing congenital C1 (first component of complement) deficiency

 

Diagnosing acquired deficiency of C1 inhibitor

Method Name

Nephelometry

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Serum

Specimen Required

Container/Tube:

Preferred: Red top

Acceptable: Serum gel

Specimen Volume: 1 mL

Collection Instructions: Fasting.

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 21 days
  Ambient  21 days
  Frozen  21 days

Reference Values

12-22 mg/dL

Day(s) and Time(s) Performed

Monday through Saturday; Continuously until 3 p.m.

Test Classification

This 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

86160

LOINC Code Information

Result ID Reporting Name LOINC Code
C1Q Complement C1q, S 4478-4