Complement Component C1q

Complement Component C1q

Test Code

981
86160
981
86160
Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.
In-home collection is not available in your area through Quest Mobile.

Clinical Significance

Complement Component C1q - The complement system is critical to the inflammatory response.  C1q concentrations may be decreased in patients with acquired angioedema, immune complex induced vasculitis, and concurrent low concentrations of C1 inhibitor, carcinoma, or lymphoma.

Test Resources

None found for this test
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Test Details

Methodology

Radial Immunodiffusion (RID)

Assay Category

This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Reference Range(s)

5.0-8.6 mg/dL

Alternative Name(s)

C1q Complement Component

LOINC® Codes, Performing Laboratory

Service Area must be determined

Methodology

Radial Immunodiffusion (RID)
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Reference Range(s)

5.0-8.6 mg/dL

Alternative Name(s)

C1q Complement Component
Service Area must be determined

Preferred Specimen(s)

1 mL serum

Alternative Specimen(s)

Plasma collected in: EDTA (lavender-top) tube or PPT (white-top) tube

Minimum Volume

0.1 mL

Collection Instructions

Separate serum within one hour of draw time and refrigerate.
Can be drawn in a gel barrier tube but needs to be separated within one hour from time drawn.

Transport Container

Transport tube

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

  • Room temperature: 4 days
  • Refrigerated: 10 days
  • Frozen: 29 days

Reject Criteria

Gross hemolysis • Grossly lipemic • Received room temperature

Setup Schedule

Service Area must be determined
1 mL serum
Plasma collected in: EDTA (lavender-top) tube or PPT (white-top) tube
0.1 mL
Separate serum within one hour of draw time and refrigerate.
Can be drawn in a gel barrier tube but needs to be separated within one hour from time drawn.
Transport tube
Refrigerated (cold packs)
Room temperature: 4 days
Refrigerated: 10 days
Frozen: 29 days
Gross hemolysis • Grossly lipemic • Received room temperature
Service Area must be determined
Not offered in Quest Diagnostics Nichols Institute (IFD) – San Juan Capistrano. Please provide SERVICE AREA INFORMATION to find available tests you can order.
In-home collection is not available in your area through Quest Mobile.
Test Details

Clinical Significance

Test Resources

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.

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