Hypothermia

J Wave: Basics

Key Points Definitions: The J point is the QRS–ST junction (a location). A J wave is an added deflection at or just after that point (notch or slur).  Why it…

Osborn (J) Wave: Basics

Key Points An Osborn wave is a notch or slur at the J point that becomes more prominent as core temperature falls. Most visible in inferolateral and precordial leads; can…

Severe Hypothermia

Key Points Severe hypothermia causes rate- and temperature-dependent ECG changes that signal high arrhythmia risk. Recognition guides safe rewarming and prevents iatrogenic VF. Osborn (J) waves may appear and typically…

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…

2024 EMS Cases Part I

A 64-year-old man is being brought in by EMS for chest pain and shortness of breath. The following EMS ECG is obtained:

ECG cases to help you save lives and also crush your board exams

A 45-year-old woman is being observed in the emergency department after treatment with thrombolytics for MI. She is noted to be tachycardic one hour after treatment with a change in…

Bradydysrhythmia: when is it actually considered a complete heart block?

A 52-year-old man presents to the emergency department with chest pain associated with nausea and diaphoresis. The following ECG is obtained on arrival:

EMS ECGs: regular and irregular narrow complex tachycardias, junctional rhythms, the ECG in LVAD patients, and more!

A 62-year-old man is found unresponsive at home. The following EMS ECG is obtained:

Differential Diagnoses: narrow complex irregular tachycardia, short QTc intervals, ST segment elevation in aVR, and so much more!

An 89-year-old woman is brought into the emergency department with generalized weakness and dizziness. She is noted to be bradycardic at triage. The following ECG is obtained with no prior…

STAT ECG Diagnoses: identification of acute coronary occlusion myocardial infarction in patients with bundle branch blocks

A 70-year-old woman is brought into the ED by EMS with shortness of breath, weakness, and hypotension. The following prehospital ECG is obtained: 

5 challenging EMS cases to help you test your emergency ECG interpretation skills

A 78-year-old man is brought into the ED by EMS with chest aches, dyspnea, and palpitations. The following prehospital ECG was obtained:

STAT ECG Diagnoses: ECG findings that can help you clinch the diagnosis in patients with altered mental status

A 56-year-old woman is brought into the ED by EMS and is minimally responsive. History is limited. The following ECG is obtained:

Great EMS cases that highlight hyperkalemia emergencies, rate related ST segment abnormalities, and so much more!

HPI: A 69-year-old woman presents to the ED with palpitations and lightheadedness. She is noted to be tachycardic. The following ECG is obtained: Case ECG

Great EMS cases that highlight hypothermia emergencies, the ECG findings in acute pulmonary embolism, and so much more!

A 39-year-old woman is being taken to the ED by EMS for palpitations and lightheadedness. She is noted to be tachycardic. The following ECG is obtained:

ECG Basics & Fundamentals: the ECG findings of hypothermia

An 80-year-old male with a history of HTN, atrial fibrillation and an unknown “kidney problem” presents to the ED after being found unresponsive at home by his son. He was…

ECG Basics and Fundamentals: ECG findings in hypothermia

HPI: An elderly woman is found down by EMS early in the morning in Baltimore. Her family reports that was drinking some eggnog the night before at a holiday party….

Spooky cold ECG findings in a patient with altered mental status on halloween night

ECG findings in hypothermia

A 77-year-old male is brought into the ED after being found unconscious in his home. The following prehospital ECG was obtained and compared to an old normal ECG: