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: 0.3mL serum
Grossly hemolyzed specimens
Offsite: Send frozen serum Priority Overnight via FedEx and in a well insulated container on dry ice.
8 hours at room temperature.
24 hours refrigerated at 2-8°C
>24 hours frozen at -20°C
2 Site Sandwich Chemiluminescent
Results same day if samples are received prior to 6PM
Human female: 11.0 - 306.8 ng/mL
Human male: 23.9 - 336.2 ng/mL