Test Overview
Test Methodology

Nephelometry

Test Usage

Diagnosis of congenital and acquired C1-inhibitor deficiency.

Reference Range *

12 - 22 mg/dL

Test Details
Days Set Up
Monday - Saturday
Analytic Time

2 - 4 days

Soft Order Code
C1Q
MiChart Code
C1q Complement, Antigen
Synonyms
  • Complement C1Q
  • First Component of Complement (subunit C1q)
  • C1Q
  • C1Q COMPLEMENT COMPONENT
Laboratory
Sendout
Reference Laboratory
Mayo C1Q (8851)
Section
Special Testing
Specimen Requirements
Collection

Collect blood in a red top or SST tube. A fasting specimen is preferred but not required. Centrifuge, aliquot serum into plastic vial and refrigerate.

Fasting Specimen
A fasting specimen is preferred but not required.
Normal Volume
1 ml serum
Minimum Volume
0.5 ml serum
Additional Information

Test sent to Mayo Medical Laboratories.

Billing
CPT Code
86160
Fee Code
20085
LOINC
4478-4