C2 - Overview: C2 Complement, Functional, with Reflex, Serum

Test Catalog

Test Name

Test ID: C2    
C2 Complement, Functional, with Reflex, Serum

Useful For Suggests clinical disorders or settings where the test may be helpful

Investigation of a patient with a low (absent) hemolytic complement (CH50), with reflex testing to C3 and C4, if appropriate

Reflex Tests Lists tests that may or may not be performed, at an additional charge, depending on the result and interpretation of the initial tests

Test IDReporting NameAvailable SeparatelyAlways Performed
C4Complement C4, SYesNo
C3Complement C3, SYesNo
C2AGC2 Complement, Antigen, SNoNo

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

If the C2 result is less than 15 U/mL, then C3, C4, and C2AG will be performed at an additional charge.

Method Name A short description of the method used to perform the test

C2: Automated Liposome Lysis Assay

NY State Approved Indicates the status of NY State approval and if the test is orderable for NY State clients.


Reporting Name A shorter or abbreviated version of the Published Name for a test; an abbreviated test name

C2 Complement,Functional,w/Reflex,S

Aliases Lists additional common names for a test, as an aid in searching

C2 Functional