Rhythm Interpretation
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Recent University of Maryland Medical Center Cases (Part V)
A 67-year-old man presents with profound generalized weakness and inability to move his extremities or get out of bed. He has a history of hypertension, chronic kidney disease, substance use…
Recent University of Maryland Medical Center Cases (Part IV)
A 73-year-old man is brought to the emergency department with palpitations. The following ECG is obtained on arrival:
2025 ECG Competition Answers (Part 3/3)
This week we review the answers to questions 10-14 from the 13th Annual UMEM Residency ECG Competition. Make sure to attempt to answer the questions yourself before watching the video…
2025 ECG Competition Answers (Part 2/3)
This week we review the answers to questions 6-9 from the 13th Annual UMEM Residency ECG Competition. Make sure to attempt to answer the questions yourself before watching the video…
2025 ECG Competition Answers (Part 1/3)
This week we review the answers to questions 1-5 from the 13th Annual UMEM Residency ECG Competition. Make sure to attempt to answer the questions yourself before watching the video…
Recent University of Maryland Medical Center Cases (Part III)
A 59-year-old man presents to the emergency department with chest pain and palpitations. The following ECG is obtained on arrival:
Recent University of Maryland Medical Center Cases (Part II)
A 72-year-old woman presents to the emergency department with lightheadedness and near-syncope. The following ECG is obtained on arrival:
Recent University of Maryland Medical Center Cases (Part I)
A 67-year-old man presents to the emergency department with chest pain and palpitations. The following ECG is obtained on arrival:
Optical Illusions and 12-Lead ECGs: How First Impressions Can Mislead
A 42-year-old woman presents to the emergency department with chest pain, shortness of breath, and palpitations. Her blood pressure and mental status are noted to be normal. The following ECG…
Unrecognized Killers in Emergency Electrocardiography
A 42-year-old man presents with fever, cough, shortness of breath, and vomiting. He appears toxic and dehydrated on arrival with suspected severe sepsis from multilobar pneumonia. He is later intubated…
2025 EMS Cases Part II
A 57-year-old man is being brought in by EMS for generalized weakness and vomiting. The following ECG is obtained and transmitted as a CODE STEMI alert:
2025 EMS Cases Part I
A 55-year-old woman calls EMS with acute palpitations and chest discomfort. Vitals are normal aside from marked tachycardia. The following prehospital ECG is obtained:
2025 In-Training Exam Preparation (Part II/III)
A patient presents to the emergency department after an episode of syncope and suddenly loses consciousness while obtaining the following ECG at triage:
2025 In-Training Exam Preparation (Part I/III)
It’s safe to assume that board exams will test your ability to diagnose and manage wide complex tachyarrhythmias. Here is a challenging wide complex rhythm in a patient with palpitations…
T Wave Clues: Uncovering Concealed Conduction Blocks and Arrhythmias
A 58-year-old man presents to the emergency department after an episode of syncope. The following ECG is obtained on arrival and interpreted as “sinus bradycardia”:
2024 UMMC Cases (Part III)
A 67-year-old man arrives at the emergency department with palpitations. He is noted to be tachycardic at triage and the following ECG is obtained and interpreted as “sinus tachycardia”:
2024 UMMC Cases (Part I)
A 69-year-old man arrives at the emergency department with shortness of breath and profuse sweating. The ECG obtained below shows sinus tachycardia at a rate of ~ 130 bpm with…
When One Lead Stands Alone: Deciphering Bizarre ECG Abnormalities
A 67-year-old woman with PMHx of HTN, DM, and ESRD presents to the emergency department drowsy and non-cooperative. Her blood sugar is elevated, pH 7.23, and there is concern for…
How the Lewis Lead Can Improve Tachyarrhythmia Diagnosis
A 68-year-old woman presents to the emergency department with palpitations and tachycardia. The following ECG is obtained:
The Approach to Uncovering Hidden STEMI
A 92-year-old man presents to the emergency department with acute chest pain and diaphoresis. The following ECG is obtained:
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