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Home > C4 Level Complement Laboratory
Plasma from a lavender top (EDTA) tube is the only acceptable sample type. Mix sample thoroughly.
Centrifuge at room temp within one half hour of collection; preferably immediately after venipuncture. Transfer the cell-free plasma to a clean tube and immediately freeze the cell-free plasma on dry ice at -70°C.
Preferred volume: 1mL plasma, frozen
Minimum volume: 250 µL plasma, frozen
Send frozen plasma Priority Overnight via FedEx and in a well insulated container on dry ice.
Frozen at -70°C: 1 year
Up to 4 weeks
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Advanced Diagnostic Laboratories
1400 Jackson St
Denver, CO 80206
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