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: 0.15 mL serum
Offsite: Send frozen serum Priority Overnight via FedEx and in a well insulated container on dry ice.
Stability after cell separation:
4 hours at RT (15-25°C)
8 days at 2-8°C
3 months frozen at ≥ -20°C
Monday - Friday
Complement (C4 Level);Acquired Angiodema (C4 Level);Hereditary Angiodema (C4 Level);Angiodema (C4 Level);Nephelometry (C4 Level)
Acquired Angiodema: C1-INH function (CEIF), C1-INH level (CEIQ), C1q level (C1Q), C1-inhibitor autoantibody (CEIAP)
Newborn - 2 months
3 months - 19 years