Tall R wave in V1
Results:
Really Wide, Kind of Slow: VT vs. Toxicity
A 78-year-old woman with PMHx of atrial fibrillation presents to the emergency department with generalized weakness. She is noted to be tachycardic on arrival, is known to be on flecainide…
Tall R wave in V1 DDx
Key Points Normal expectation: In V1, the S wave is typically larger than the R wave. A tall or dominant R wave (R/S > 1) is abnormal and should prompt…
STAT ECG Diagnoses: recognition of life threatening ECG patterns before sudden cardiac arrest
A 73-year-old woman with past medical history of diabetes mellitus and atrial fibrillation is brought to the emergency department for mild hematemesis. The following ECG is obtained, and the patient…
Differential Diagnoses: must know causes of right axis deviation and wide QRS complexes
A 30-year-old man is pulled over by police for speeding. He begins feeling nauseous and has multiple episodes of vomiting. During transport to the emergency department by EMS he is…
Differential Diagnoses: important considerations in patients with new onset seizures or altered mental status, must know diagnoses in the emergency department
A 40-year-old man is brought into the ED after being found in the street and noted to have intermittent seizures. He is tachycardic, hypertensive, and febrile. The following ECG was…
ECG Basics & Fundamentals: ECG findings of dextrocardia
A 22-year-old woman presents to the emergency department with atypical chest pain. Her vital signs are normal. The following ECG is obtained:
Differential Diagnoses: wide QRS, right axis deviation, tall R wave in V1
A 76-year-old woman presents to the ED with dyspnea and a syncopal episode. History is limited because the patient is listless and confused. The following ECG was obtained:
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