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Test Code C1Q Solid C1Q Immune Complex Solid Phase

Clinical System Name

C1Q Immune Complex Solid Phase


immune complex assay

Circulating complement binding immune complex

Circulating Immune Complex Detection

Immune Complex Assay

Sample Requirements

Specimen: Whole Blood

Container(s): Gold SST or Red

Preferred Vol: 2.0 mL

Minimum Vol: 1.0 mL


Note: Send to Main Lab STAT. Must be frozen within one hour of collection.

Processing Instructions

Reject due to: Non-frozen specimens

Spin: Y

Aliquot: Y

Temp: -70 C

Storage location: Serum must be frozen within one hour of blood draw. Spin blood, transfer 1 mL serum to a plastic tube affixed with a large Cerner label. Store serum in the CPA -70 freezer, Send Outs rack.


Off-site collection: Spin, aliquot, and freeze specimen. Transport frozen.


Specimen Type Temperature Time
  Room temp 2 h
  Refrigerated Unacceptable
  Frozen 2 w



STAT Performed TAT
N M and Th 1 - 8 d


Performing Laboratory

ARUP Laboratories

500 Chipeta Way
Salt Lake City, UT 84108-1221


Phone Number: (800) 522-2787



Department: Send Outs

Phone Number: (206) 987-2563


Reference Range


Less than 4 µgE/mL is considered negative for circulating complement binding immune complexes.


Method: Semi-Quantitative Enzyme-Linked Immunosorbent Assay

Analytical Volume: 0.3 mL


CPT Codes




Send Out Instructions


Reference Test Name: C1q Binding Assay
Reference Test Number: 0050301
Instructions: Send out Monday - Friday with the ARUP courier.