Plain red top or SST tube.
Onsite [NJH]: Transport to lab within 1 hour.
Offsite: Separate serum from cells within 2 hours by centrifuge and aliquot into a labeled polypropylene or similar plastic tube.
Preferred volume: 1 mL serum
Minimum volume: 150 mcL serum
Offsite: Send frozen serum Priority Overnight via FedEx and in a well insulated container on dry ice.
Stability after cell separation: 6 hours ambient, 24 hours refrigerated, indefinitely if frozen.
Complement (C3/C4 Level Panel);C3 (C3/C4 Level Panel);C4 level (C3/C4 Level Panel);Nephelometry (C3/C4 Level Panel);C3 level (C3/C4 Level Panel);C4 (C3/C4 Level Panel)
SEE INDIVIDUAL COMPONENTS C3 and C4