Zone 1: Xiphoid process for Zone 1 (aprox 50cm)
Zone 3: umbilicus for Zone 3 (approx 40cm)
Resistance will be felt as the<unk>  inflates against the wall of the<unk>  and blood pressure will increase substantially if successful
Resuscitative endovascular balloon occlusion of the aorta
Thrombolytics for pulmonary embolism
Thrombolytics for STEMI
Formal echocardiography
Synchronized cardioversion
Double simultaneous external defibrillation
Balloon tamponade for massive GI bleeding
Thrombolytics for acute ischemic stroke