Around 0530 this am units were dispatched to the area of 3900blk of Kemptown Church Rd for a Pedestrian struck, while units were responding ecc advised units they had reports of serious inj's and were starting aviation, units arrived to find a CAT-A PRI-1 trauma pt that had been struck by a pickup truck, crew's worked to package the pt and the pt was flown via Trooper-3 to SHOCK TRAUMA and the incident scene was turned over to the Frederick county Sheriff's office.