< or = 600 pg/mL
5 - 10 days
Collect specimen in an SST tube. Spin and aliquot into a screw capped plastic tube, within 2 hours of collection. Send to Specimen Processing frozen.
Can be ambient less than 24 hours, but must be frozen for shipment.
Test performed by the Translational Trials Development and Support lab (TTDSL) at Cincinnati Children's Hospital.