T-wave alternans

Results:
Weekly Workout November 24, 2025
Not Cerebral T Waves: The Beat-to-Beat Warning You Cannot Miss

A 71-year-old woman with baseline dementia presents with worsened confusion, nausea, and multiple episodes of vomiting over the past 24 hours. Her vital signs are reasonable and her exam is…

ECG STAT November 7, 2025
T Wave Alternans

Key Points Definition: Beat-to-beat alternation in T wave amplitude or morphology with stable P waves and QRS complexes. Significance: A visible marker of ventricular electrical instability. Strongly associated with torsades,…

Weekly Workout December 30, 2024
A Decade of ECG Gems: The Final 5 Favorite Cases

A 50-year-old woman presents with palpitations. She reports symptoms of an upper respiratory infection and has a low grade fever. The following ECG is obtained:

Weekly Workout December 30, 2019
STAT ECG Diagnoses: abnormal T waves and T wave alternans

An elderly male presents with weakness and lightheadedness to his primary care physician. He is referred to the ED after the following ECG is obtained:

ECG Tags
Loading...