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Test Code C8FX C8 Complement, Functional, Serum

Reporting Name

C8 Complement, Functional, S

Useful For

Diagnosis of C8 deficiency

 

Investigation of a patient with an undetectable total hemolytic complement level

Method Name

Automated Liposome Lysis Assay

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum Red


Ordering Guidance


The total complement assay (COM / Complement, Total, Serum) should be used as a screen for suspected complement deficiencies before ordering individual complement component assays. A deficiency of an individual component of the complement cascade will result in an undetectable total complement level.



Specimen Required


Patient Preparation: Fasting preferred

Supplies: Sarstedt 5 mL Aliquot Tube (T914)

Collection Container/Tube: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 1 mL

Collection Instructions:

1. Immediately after specimen collection, place the tube on wet ice.

2. Centrifuge and aliquot serum into plastic vial.

3. Immediately freeze specimen.


Specimen Minimum Volume

0.5 mL

Reject Due To

Gross hemolysis OK
Gross lipemia Reject
Gross icterus OK

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Red Frozen 14 days

Reference Values

33-58 U/mL

Day(s) Performed

Monday through Friday

CPT Code Information

86161

LOINC Code Information

Test ID Test Order Name Order LOINC Value
C8FX C8 Complement, Functional, S 50997-6

 

Result ID Test Result Name Result LOINC Value
C8FX C8 Complement, Functional, S 50997-6

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

Report Available

1 to 3 days