Collect in a plain red top or SST tube.
Separate serum from cells immediately by centrifugation and aliquot into a polypropylene or similar plastic tube.
Preferred volume: 1 mL serum
Minimum Volume: 0.5mL serum
Plasma, specimens with added azide or other preservatives, microbially contaminated, heat treated, or specimens with visible particulates not accepted.
Frozen. Send serum Priority Overnight via FedEx and in a well insulated container on dry ice.
Up to 8 hours ambient or 48 hours refrigerated at 2-8°C. Freeze at or below -20°C for longer storage or shipping.
Immunology Lab - Diagnostic
Negative <20 units
Positive >=20 units