A trauma patient is restless and repeatedly asking "where am I?" Vital signs upon arrival were BP 110/60 mm Hg, HR 96 beats/minute, and RR 24 breaths/minute. Skin is cool and moist. Current vital signs are BP 86/68 mm Hg, HR 118 beats/minute, and RR 28 breaths/minute. The patient is demonstrating signs and symptoms of which stage of shock?
a) Compensated shock
b) Decompensated shock
c) Pre-shock
d) Irreversible shock