C1q Level
Test Code
C1Q
Description
Collect
Plasma from a lavender top (EDTA) tube is the only acceptable sample type. Mix sample thoroughly.
Pediatric Collection
Minimum volume: 250 µL plasma, frozen
Unacceptable Conditions
Thawed specimen.
Storage Transport Temp
Send frozen plasma Priority Overnight via FedEx and in a well insulated container on dry ice.
Stability
Frozen at -70°C: 1 year
Performed
Methodology
Radial Immunodiffusion (RID)
Turnaround Time
Up to 4 weeks
Department
Complement Lab
Synonyms
Acquired Angioedema (C1q Level);Radial Immuno Assay (C1q Level);Angioedema (C1q Level);C1q Non-Binding;Hereditary Angioedema (C1q Level);Complement (C1q Level);C1q Antigen
Study Offerings
RUO
CAP/CLIA
Related Tests
Acquired Angiodema: C1-INH function (CEIF), C1-INH level (CEIQ), C4 level (C4), C1-inhibitor autoantibody (CEIAP)
Reference Interval
Human Male: 83-125 mcg/mL
Human Female: 83-125 mcg/mL
CPT Code
86160
New York Approved
Legacy
FDA
LDT