A 68-year-old woman calls EMS after having a syncopal episode while using the bathroom. She reports associated chest pain over the past day. The following prehospital ECG is obtained:ecgweekly.com/weekly-workout…

A 79-year-old man is sent to a community hospital for evaluation of bradycardia discovered at his nursing facility. He is ultimately transferred to a tertiary care facility for consideration of pacemaker placement after the following ECG is obtained:ecgweekly.com/weekly-workout…

A 51-year-old man presents to the emergency department via EMS with nausea, vomiting, weakness, severe bradycardia (HR in the 20s), and hypotension (BP 60s systolic). The following ECG is obtained on arrival:ecgweekly.com/weekly-workout…

An elderly patient is brought to the emergency department with acute stroke symptoms and the following routine 12-lead ECG is obtained during the patient’s stroke evaluation......ecgweekly.com/weekly-workout…

A52-year-old woman presents to the emergency department with weakness. The following ECG is obtained......ecgweekly.com/weekly-workout…

A 64-year-old man presents to the emergency department with palpitations. He was recently found to have an acute MI and is one day s/p RCA stenting. The following ECG is obtained.......ecgweekly.com/weekly-workout…

A 55-year-old man with PMHx of hyperlipidemia presents to the emergency department with vague chest discomfort. The following ECG is obtained.....ecgweekly.com/weekly-workout…

A 78-year-old woman with PMHx of atrial fibrillation presents to the emergency department. She is noted to be tachycardic on arrival, and is known to be on flecainide and takes metoprolol as needed. The following ECG is obtained on arrival....ecgweekly.com/weekly-workout…

A 16 yo male is referred to the emergency department from a primary care clinic with concern for STEMI. He has no known past medical history. At the clinic, he reported nonspecific chest pain, but upon arrival to the ED he is asymptomatic......ecgweekly.com/weekly-workout…

52 yo with PMHx of hypertension presents after a syncopal episode at home. He felt lightheaded while standing briefly lost consciousness without seizure activity or trauma. No prior syncope, stimulant use, and no family history of sudden death is known. rebrand.ly/pdhwbjk

A 36-year-old man with hypertension and regular cannabis use (edibles, ~3x/week) is referred from clinic to the ED for chest pain and an abnormal ECG. His first ECG during pain is read as an anterolateral STEMI and is shown below....ecgweekly.com/weekly-workout…

A 28 yo f, postpartum, calls 911 for acute chest pressure. Paramedics obtain the following prehospital ECG that the computer interprets as “nonspecific ST abnormalities” the patient waits in the hallway for 30 minutes before anyone recognizes..... rebrand.ly/bob3si5

A patient presents to the emergency department with new-onset palpitations. He is hemodynamically stable but noted to have an irregular rhythm on arrival. The following ECG is obtained.....ecgweekly.com/weekly-workout…

A 40-yo man presents with chest discomfort and shortness of breath. He’s ashen, diaphoretic, and hypotensive at 90/45. The ECG monitor shows a wide-complex regular tachycardia at 135 bpm concerning for ventricular tachycardia....ecgweekly.com/weekly-workout…

A 30-yo f presents with one hour of chest discomfort and palpitations. The 12-lead shows a fast rhythm that appears wide at first glance. Cardiology and then EP are consulted and label it VT. Multiple cardioversions and adenosine.... rebrand.ly/hye1940

A 64-year-old man arrives to the ED via EMS just after achieving return of spontaneous circulation following cardiac arrest. He received epinephrine, chest compressions, and was defibrillated. The following ECG is obtained immediately on arrival after.....ecgweekly.com/weekly-workout…

A 67 yo man arrives at the emergency department complaining of lightheadedness. The following ECG is obtained and shows a slow, regular rhythm around 40 beats per minute. The P waves seem to wander closer to and farther from the QRS complexes....ecgweekly.com/weekly-workout…

A 73-year-old man presents to the emergency department with nausea and vomiting. The following ECG was obtained on arrival and interpreted by the computer as “sinus tachycardia”, but something important was missed......ecgweekly.com/weekly-workout…

This Black Friday, don’t miss your chance to join the tens of thousands of clinicians who rely on ECG Weekly for top-tier ECG teaching. If you’ve been waiting for the perfect time to start — this is it. 25% off your first year with code BF2025 through Cyber Monday.

A 71 yo F with baseline dementia presents with worsened confusion, nausea, and multiple episodes of vomiting over the past 24 hours. An ECG obtained on arrival shows deep T wave inversions and QT prolongation. Many would suspect cerebral T waves...... rebrand.ly/j0myee3