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Test Code COM Complement, Total, Serum

Important Note

TML Outreach Collection Instruction:  Use a “Green Tube Chiller” instead of wet ice

Additional Codes

Torrance Memorial Laboratories Test Code:  62871805 (Alias:  CH50)

Reporting Name

Complement, Total, S

Useful For

Detection of individuals with an ongoing immune process

 

First-tier screening test for congenital complement deficiencies

Method Name

Automated Liposome Lysis Assay

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum


Specimen Required


Patient Preparation: Fasting preferred but not required

Supplies: Sarstedt Aliquot Tube 5 mL (T914)

Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions:

1. Immediately after specimen collection, place the tube on wet ice and allow specimen to clot.

2. Centrifuge at 4° C and aliquot serum into 5 mL plastic vial.

3. Within 30 minutes of centrifugation, freeze specimen. Specimen must be placed on dry ice if not frozen immediately.

NOTE: If a refrigerated centrifuge is not available, it is acceptable to use a room temperature centrifuge, provided the specimen is kept on ice before centrifugation, and immediately afterward, the serum is aliquoted and frozen.


Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Frozen 28 days

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus OK

Reference Values

30-75 U/mL

Day(s) Performed

Monday through Friday

Report Available

1 to 2 days

CPT Code Information

86162

LOINC Code Information

Test ID Test Order Name Order LOINC Value
COM Complement, Total, S 4532-8

 

Result ID Test Result Name Result LOINC Value
COM Complement, Total, S 4532-8

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.