Ian Chernoff delves into the tricky diagnosis of traumatic coronary artery dissection, shedding light on its elusive nature. Anand Swaminathan discusses optimal insulin use in emergency situations like DKA and hyperkalemia, while Brit Long and Hans Rosenberg reveal crucial pearls and pitfalls in mesenteric ischemia management. Dave Jerome tackles the recognition of exercise-associated hyponatremia and its management strategies. Finally, Jesse McLaren introduces the Queen of Hearts AI model to improve detection of occlusion myocardial infarction on ECG.