![ALS algorithm](../../../images/content/course_title.jpg)
- Electrical cardioversion
Electrical cardioversion should be carried out under general anaesthesia or conscious sedation given by a healthcare professional with the appropriate training and experience.
![A defibrillator.](images/m50_t25_025.png)
The first step in preparing to administer electrical cardioversion is to ensure that the defibrillator is set to deliver a synchronised shock. An unsynchronised shock could coincide with a T wave and cause ventricular fibrillation (VF).
There is more information on electrical cardioversion in the topic How to Perform synchronised cardioversion including a video demonstration on how to use the defibrillator to give a synchronised shock.
Select Next to continue.References
See chapter 11 of the ALS manual for further reading about the tachycardia algorithm.
Algorithm: The tachycardia algorithm
The tachycardia algorithm is available in chapter 11 of the ALS manual.
![The tachycardia algorithm is available in chapter 11 of the ALS manual.](images/ALG_m50_t25_030.jpg)
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