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Test Code CH50C Complement Activity Total, (CH50

Important Note

Initial screening for suspected deficiency in the classical complement pathway.

Additional Codes

3002575

Specimen Type

Blood

Preferred Collection Container

Red

Acceptable Collection Container

Red

Collection Instructions

Allow specimen to clot for one hour at room temperature. Separate serum from cells ASAP or within 2 hours of collection. 

Collection Volume

2 mL

Minimum Collection Volume

1 mL

Rejection Criteria

 

Separator tubes. Specimens left to clot at 2-8°C. Specimens exposed to repeated freeze/thaw cycles. Non-frozen specimens. Grossly hemolyzed or severely lipemic specimens.

Specimen Storage and Stability

Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 1 month

CPT

86162

Alias

CAE; CAE total; CH50; Complement CH100, Total; Total Complement; Total Complement CH100; Total Complement CH50; Total Hemolytic Complement Activity

Ordering Info

Initial screening for suspected deficiency in the classical complement pathway.

Transport Temperature

Frozen

LOINC

4532-8

Testing Volume

0.5 mL