Key Points Definition: T waves represent ventricular repolarization, the process by which the heart’s ventricles reset electrically after a heartbeat. Normal Characteristics: A normal T wave is upright in most…
A 25-year-old woman presents to the emergency department with lightheadedness and palpitations for 1 week. Her symptoms worsened today with a near-syncopal episode. She is thin/frail and dehydrated in appearance….
A 56-year-old woman presents to a busy ED dehydrated with acute gastroenteritis. She is placed in a hallway bed and treated with IV fluids and ondansetron. On reassessment the patient…
A 55-year-old man presents to the ED with intermittent chest pain. He describes transient burning sensation that comes on only after eating. His pain does not radiate, and is not…
A young man presents to the ED with generalized weakness. The following ECG is obtained:
HPI: 32-year-old female with PMHx of hyperthyroidism (on carbimazole) presents with jaundice and intermittent palpitations. She has mild RUQ abdominal pain, but is otherwise well. Vitals: HR~100, BP-130/70, RR-18, afebrile. Exam:…