ALS algorithm

- Summary

You have reached the end of this case study on recognising types of tachycardia 3.
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Here is a summary of the key points:

  • There are several different drugs that can be prescribed to try to achieve rhythm control and/or rate control in atrial fibrillation
  • If a patient has an irregular narrow-complex tachycardia and you identity adverse features, synchronised cardioversion should be performed

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References

See chapter 11 of the ALS manual for further reading about the tachycardia algorithm.

Essentials: The 6-stage approach

1. Is there any electrical activity?

2. What is the ventricular (QRS) rate?

3. Is the QRS rhythm regular or irregular?

4. Is the QRS width normal (narrow) or broad?


Any cardiac rhythm can be described accurately and managed safely and effectively using the first four stages.

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5. Is atrial activity present? (If so, what is it: Typical sinus P waves? Atrial fibrillation? Atrial flutter? Abnormal P waves?)

6. How is atrial activity related to ventricular activity? (e.g 1:1 conduction, 2:1 conduction, etc, or no relationship)

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.

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