Metabolic Emergencies

Differential Diagnoses: rollercoaster T waves

A 45-year-old woman presents to the ED with lethargy. BP = 100/50, HR = 60, RR= 12 & shallow. Her nurse thought her rhythm looked abnormal on the cardiac monitor…

Wide Complex Tachycardias: regular wide complex tachycardia (RWCT) vs. regular REALLY wide complex tachycardia (RRWCT)

A 70-year-old male presents to the ED with generalized weakness and dizziness. He is suspected to be in atrial fibrillation with a heart rate of ~ 150 bpm. He is…

Differential Diagnoses: prolonged QT and himalayan T waves

A 24-year-old man presents to the ED with diarrhea and dehydration. He is diagnosed with salmonella gastroenteritis and is found to have severe electrolyte abnormalities. The following ECG was obtained…

ECG Basics & Fundamentals: the value of ECGs in patients with diabetic ketoacidosis (DKA)