These are the studies that Seattle/King County has participated in over the last 4 decades:

 

Sodium Bicarbonate

MITI - Myocardial Infarction Triage and Intervention

High Dose vs Low dose Epinephrine

Mono-Phasic vs Bi-Phasic Defibrillation

Early Defibrillation vs. Early CPR

30 seconds of CPR vs. 3 minutes of CPR

 Normal Saline vs D5W

 Amiodarone

 CABS Registry* (Cardiac Arrest Blood Study)

 Hypertonic Saline

 Pre-Hospital Hypothermia (Cardiac Arrest)

TXA - Tranexamic Acid (TBI)

 ALPS - Amiodarone, Lidocaine, Placebo Study