Knowledge Base

Non-Shockable Rhythms: Asystole & PEA

Knowledge Base

title: "Non-Shockable Rhythms: Asystole & PEA"

Non-Shockable Rhythms: Asystole & PEA

Key Facts

The 4 Hs of reversible causes are: Hypoxia, Hypovolaemia, Hypo/hyperkalaemia, Hypothermia

The 4 Ts of reversible causes are: Tension pneumothorax, Tamponade, Toxins, Thrombosis (PE/MI)

Adrenaline dose in cardiac arrest is 1 mg IV/IO every 3-5 minutes (non-shockable: give ASAP).

Source: ANZCOR ALS adult algorithm.

Non-shockable rhythms (asystole/PEA) are not treated with defibrillation — prioritise CPR, adrenaline, and reversible causes

Overview

This article covers Asystole management, PEA causes, 4Hs and 4Ts.

Content for this wiki article will be expanded from the Week 1 material.

ECG Example

Asystole

Asystole management

Content to be added from source material.

PEA causes

Content to be added from source material.

4Hs and 4Ts

Content to be added from source material.

Sources

  • ANZCOR Guidelines
  • CC Bible

Test Your Knowledge

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In adult PEA (Pulseless Electrical Activity)/asystole cardiac arrest, when should the first dose of adrenaline be given?
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SBAeasywikinon-shockable-rhythms
Which of the following is NOT one of the 4 Hs of reversible causes in cardiac arrest?
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Related Topics

See also: Advanced Life Support (ALS), Shockable Rhythms: VF & Pulseless VT