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Complement C4

Source Blood
Mnemonic C4
Specimen Requirements

1 x 3 mL light green (mint) top PST tube.  Gold top SST tube also acceptable. 

0.5 mL plasma or serum

Minimum Whole Blood Volumes for Microcollections

Specimen Handling
Additional Information

C4 can also be performed on fluids (test mnemonic CMISC).
Misc Chem Test field: C4 Fluid

Not available on CSF unless approved by a pathologist. Contact LIC at 403-770-3600 for Pathologist On Call information.

Testing Location Chemistry-DSC
Testing Frequency Weekdays
Alternate Name(s) C4
Reference Interval 0.1 - 0.4 g/L