A 33-year-old factory worker was pinned between two pieces of machinery. When you arrive at the scene, you find him lying supine on the ground complaining of severe pain to his pelvis.
He is restless, diaphoretic, and tachycardia. After performing a rapid head-to-toe assessment, you should:

A) carefully log roll him to check his back.
B) palpate his pelvis to assess for crepitus.
C) perform a detailed secondary exam.
D) prepare for immediate transport.