‘It’s here.’ [The occlusion area has been confirmed.] Immediately upon Ronnie’s confirmation, a micro puncture needle was inserted into the thigh at a 45-degree angle. Only Jo Yoon-seong, who was watching the series of processes, and the sound of breathing of the 119th crew filled the quiet ambulance. Normally, when the needle was punctured, blood in the artery had to come out to confirm that the puncture was done properly, but now nothing has happened. It was one of the two. Kim Do-yoon stabbed the wrong part, or stabbed the embolic part blocking the arterial blood vessel. Only Kim Do-yoon, who was performing the puncture, knew which one was correct. A cold sweat ran down Jo Yoon-seong’s temple. Kim Do-yoon’s expression as he inserts the microwire into the needle was ambiguous.

