You have been called to ED to see a 22-year-old man who received a single 3 cm stab wound to the left side of his neck (zone 1) an hour previously. There is no active bleeding and his neck is slightly swollen. He is conscious, but pale and clammy with a pulse rate of 140 bpm. The left radial pulse is shallow and his blood pressure is 80/50 mmHg.

Of the following options, what is the most appropriate next step in management?