Quality Issues and Artefact
Double speed 50 mm/sec
Groups of Signs
Variations: Quality Issues and Artefact
- Standard Calibration
- Chest compression artefact
- Double speed 50 mm/sec
- Wandering baseline
- Nonspecific baseline artefact
- Electrical interference artefact
- LA/RA electrode reversal
- LA/LL electrode reversal
- RA/LL electrode reversal
- RA/RL electrode reversal
- LA/RL electrode reversal
- LA/LL + RA/RL electrode reversals
- High V1/V2 misplacement
- Electrode Detachment
- Incorrect Machine Interpretation
- Transcutaneous pacing artefact
- Fistula artifact
This ECG is from a man in his 30s who presented with dyspnoea and chest tightness.
This ECG shows a normal ECG recorded with a non-standard calibration of 50 mm/sec, making the trace look twice as slow as it really was.
This ECG is from a man in his 50s who had chest pain. His only risk factor for ischemia was hypertension.
This ECG shows bigeminy with PVCs showing concordant ST elevation in V2 and hyperacute T waves in V4-6.
This ECG is from a man in his 60s who presented with sudden central chest pressure with nausea. He had a history of previous infarction 15 years ago. This was his initial prehospital ECG.
This ECG is from a man in his 60s who presented with sudden central chest pressure with nausea. He had a history of previous infarction 15 years ago. This was his second ECG, taken 35 min after the first.
Where did they come from?
These ECGs were collected from Free Open Access Medical Education (#FOAMed) blogs, with the permission of their authors. You can find out more about each ECG's source by clicking on it.
Why are they here?
This is an experiment in digital curation. The idea is to collect resources to increase awareness and accessibility. Over time, more ECGs in the collection will be tagged to make it easier to find them and reused in new interactive quizzes.
How can I use these ECGs?
You can use these ECGs for your own learning, teaching or research - as long as you abide by the terms of each ECG's copyright licence as stipulated by the original author.