Toxicology / Overdose
Digoxin toxicity causes a variety of arrhythmias. It is classically associated with supraventricular tachycardias but a slow ventricular response, e.g. atrial tachycardia with 2:1 block. It may also cause sinus bradycardia, slow or regularised AF, AV blocks, PVCs or VT.
Digoxin toxicity should be separated from the normal digoxin effect that can occur in patients taking the expected dose of digoxin. The digoxin effect includes sagging ST segment depression, abnormal T waves (flat, inverted or biphasic) and a short QT.
- Hampton, J and Hampton, J (2019) - The ECG Made Easy, 9th edn, Elsevier
- Thaler, MS (2018) - The Only EKG Book You'll Ever Need, 9th edn, Lippincott Williams and Wilkins
- (2015) - ECG Interpretation Made Incredibly Easy!, 6th edn, Lippincott Williams & Wilkins
- Houghton, AR and Gray, D (2014) - Making Sense of the ECG: A Hands-on Guide, 4th edn, Taylor and Francis
- Wagner, GS and Strauss, DG (2013) - Marriott's Practical Electrocardiography, 12th edn, LWW
Groups of Signs
- Digoxin effect vs. toxicity:
Variations: Toxicology / Overdose
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.