# How many joules do you use for defibrillation?

## How many joules do you use for defibrillation?

The 2015 American Heart Association (AHA) guidelines for defibrillation state that it is reasonable to use the manufacturer’s recommended dose of the first defibrillation shock. On a biphasic defibrillator, this is usually between 120 joules to 200 joules. On a monophasic defibrillator, this is usually 360 joules.

### How many joules should be delivered per shock?

Apply defibrillator pads (or paddles) and shock the patient with 120-200 Joules on a biphasic defibrillator or 360 Joules using a monophasic. Continue High Quality CPR for 2 minutes (while others are attempting to establish IV or IO access).

How many joules does it take to shock a heart?

Because a shock of 10 joules defibrillated the heart of most of our patients, we recommend an initial shock of 5 to 10 joules rather than the 20 joules used more commonly.

What is defibrillation energy level?

Available clinical data indicate that an initial shock energy of 200 J will defibrillate the majority of patients. There is no advantage in starting at a higher energy, and lower energy shocks may be safer. Measurements of transthoracic impedance may permit the use of even lower energy levels for initial shocks.

## What is defibrillation important?

Defibrillation is the only therapy to treat someone in cardiac arrest. Every minute that a person in Sudden Cardiac Arrest does not receive defibrillation, their chances of survival drop by 7-10%, making rapid defibrillation imperative for survival and one of the key steps in saving a life from Sudden Cardiac Arrest.

### How much of energy is needed for internal defibrillation?

An energy setting of 2 to 10 joules/kg is selected for the initial external defibrillation attempt (or 0.2 to 1.0 joule/kg for internal defibrillation, see Box 4-1), with an increase in energy of approximately 50% for each subsequent attempt.

What energy level should you select for the first defibrillation attempt?

200 J
The traditional recommended energy for the first monophasic shock is 200 J. The energy level for second and third shocks can be either the same (200 J) or as high as 360 J. Even a failed shock at one energy may be successful if simply repeated.

What is rapid defibrillation?

Rapid defibrillation involves using an automated external defibrillator (AED) to shock the victim’s heart. While CPR keeps blood flowing artificially, rapid defibrillation is the only way to restart the heart and reset it back to a healthy rhythm.

## What is early defibrillation?

A defibrillator is a life-saving machine that gives the heart an electrical shock during a cardiac arrest. This is called defibrillation. Many people think that defibrillation starts the heart after it has stopped. Early CPR and early defibrillation is extremely important following a cardiac arrest.

### What should be the first dose of a defibrillator?

The 2015 American Heart Association (AHA) guidelines for defibrillation state that it is reasonable to use the manufacturer’s recommended dose of the first defibrillation shock. On a biphasic defibrillator, this is usually between 120 joules to 200 joules. On a monophasic defibrillator, this is usually 360 joules.

Which is a surrogate for current in a defibrillator?

Joules have become a surrogate for current in modern defibrillator language. Current: Current is what actually defibrillates the heart. It is also expressed as Voltage/Impedance (resistance).

What happens if you use the wrong defibrillator?

Using the wrong technique could have some extremely dire effects on the chest of the patient, and can even cause the heart to go into cardiac arrest. A defibrillation is a form of treatment that is used for patients who are facing immediately life-threatening arrhythmias where the patient in question does not have a pulse.

## When to use unsynchronized cardioversion in a defibrillator?

If there is no coordinated intrinsic electrical activity in the heart (pulseless VT/VF) or the defibrillator fails to synchronize in an impaired patient, unsynchronized cardioversion (defibrillation) is used.