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23227 C3a Level (FC3AR)

C3a Level (FC3AR)
Test Code: C3ASO
Synonyms/Keywords

 C3 anaphylatoxin, C3a des Arg, C3a Level, Complement C3a level

C3a Level (FC3AR)

Specimen Requirements
Specimen Type Preferred Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Plasma EDTA​ ​EDTA Lavender Top Tube (LTT) ​2 mL ​0.5 mL
Collection Processing Instructions
Draw blood in a lavender-top (EDTA) tube(s). No alternate specimen is acceptable.  Plasma gel tube(s) is not acceptable   Mix well, centrifuge at ambient temperature within one half hour of draw, and freeze immediately. Send 1 mL of EDTA plasma frozen in plastic vial. ​Complete and submit with specimen:  National Jewish Complement request form.
Specimen Stability Information
Specimen Type Temperature Time
​Plasma EDTA ​Frozen ​365 days
Rejection Criteria

​Thawed specimen.

Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Mayo Medical Laboratories forwards to National Jewish Health ​1st and 3rd Thursday of the month ​21 days
Radioimmunoassay (RIA)​
Reference Lab
Mayo Clinic Laboratories
Test Information

This test should be regarded as 'Research Use Only'. This test has not been cleared or approved by the U.S. Food and Drug Administration. It may not be covered by insurance and providers need to inform all patients of this prior to ordering. 

For Medicare patients, an Advanced Beneficiary notice (ABN) is required; for Medicaid patients, a Noncovered Services Waiver is required, and for commercial payers, prior authorization should be obtained.   ​

Test is forwarded from Mayo to National Jewish Reference Laboratories. Performance characteristics have been determined by National Jewish Clinical Reference Laboratories, Denver, CO. Results should be interpreted in conjunction with clinical findings.​

Reference Range Information
0-780 ng/mL
Outreach CPTs
 
CPT Modifier
(if needed)		 Quantity Description Comments
​86160 ​​1 ​ ​
Classification

This test should be regarded as 'Research Use Only'. This test has not been cleared or approved by the U.S. Food and Drug Administration. It may not be covered by insurance and providers need to inform all patients of this prior to ordering. 

For Medicare patients, an Advanced Beneficiary notice (ABN) is required; for Medicaid patients, a Noncovered Services Waiver is required, and for commercial payers, prior authorization should be obtained.    

Synonyms/Keywords

 C3 anaphylatoxin, C3a des Arg, C3a Level, Complement C3a level

C3a Level (FC3AR)

Ordering Applications
Ordering Application Description
COM ​C3a Level by RIA (FC3AR)
​Cerner C3a Level (FC3AR)
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Specimen Type Preferred Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Plasma EDTA​ ​EDTA Lavender Top Tube (LTT) ​2 mL ​0.5 mL
Collection Processing
Draw blood in a lavender-top (EDTA) tube(s). No alternate specimen is acceptable.  Plasma gel tube(s) is not acceptable   Mix well, centrifuge at ambient temperature within one half hour of draw, and freeze immediately. Send 1 mL of EDTA plasma frozen in plastic vial. ​Complete and submit with specimen:  National Jewish Complement request form.
Specimen Stability Information
Specimen Type Temperature Time
​Plasma EDTA ​Frozen ​365 days
Rejection Criteria

​Thawed specimen.

Reference Range Information
0-780 ng/mL
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Mayo Medical Laboratories forwards to National Jewish Health ​1st and 3rd Thursday of the month ​21 days
Radioimmunoassay (RIA)​
Reference Lab
Mayo Clinic Laboratories
For billing questions, see Contacts
Outreach CPTs
 
CPT Modifier
(if needed)		 Quantity Description Comments
​86160 ​​1 ​ ​
Classification

This test should be regarded as 'Research Use Only'. This test has not been cleared or approved by the U.S. Food and Drug Administration. It may not be covered by insurance and providers need to inform all patients of this prior to ordering. 

For Medicare patients, an Advanced Beneficiary notice (ABN) is required; for Medicaid patients, a Noncovered Services Waiver is required, and for commercial payers, prior authorization should be obtained.    

For most current information refer to the Marshfield Laboratory online reference manual.