|Title:||Biphasic Defibrillator Energies|
|Document ID:||Operational Directive OD 0061/07|
|Date of issue:||Wednesday, 18 July 2007|
|Status:||NO LONGER APPLICABLE|
|Description:||Provides best practice guidelines (Australian Resuscitation Council) regarding the energy levels to be used if not specified by the manufacturers instructions.|
|Applicable to:||Applicable to all clinical staff within Area Health Services|
|Period of effect:||from 30 June 2007 to 30 June 2010|
|Review date:||30 June 2010|
|Authorised by:||John Leaf, ACTING DIRECTOR GENERAL, DEPARTMENT OF HEALTH, 18-Jul-2007|
|Print version:||View print version|
Biphasic Defibrillator EnergiesBiphasic defibrillation energies recommended by different defibrillator manufactures vary due to a number of technical reasons. It is important to note that no one biphasic defibrillation energy or waveform has been shown to be superior over another.
The Australian Resuscitation Council (ARC) guidelines for biphasic defibrillation recommend that the energy used should follow the manufacturer’s recommendation when this is known for that specific defibrillator. When this is unknown a default energy level of 200J should be used. Best available evidence suggests that biphasic energies of up to 200J are safe and effective.
To ensure consistency in practice, facilitate teaching and the preparation of practice standards the following policy will be adopted for biphasic defibrillation for ventricular fibrillation (VF) and pulseless ventricular tachycardia (VT) in healthcare facilities in Western Australia.
Manual Biphasic Defibrillator.
For adults biphasic defibrillation energy will be 200J.
When a cardiac arrest caused by VF or pulseless VT is witnessed by the health care provider and manual defibrillator is immediately available, up to three 200J shocks may be delivered immediately after each other if required. This is for the first defibrillation attempt only and all other defibrillation attempts are single shocks only.
For children biphasic defibrillation energies will be 2 – 4 J/Kg.
Automated External Defibrillator (AED)
If an AED is used then energy levels are pre-programmed by the manufacturer and those using AEDs should simply follow the defibrillator prompts.
If available on the AED a pre-set energy dose of 50J is suitable for children between 1 and 8 years of age. Children over 8 years of age may be treated with adult pre-set energy levels.
This circular last updated: Wednesday, 18 July 2007 at 10:58am