Bra removal during CPR: What is the correct approach?

Written by

Bart de Visser

More than 15 years of experience in AEDs & cardiac safety · AEDwijzer

Published on March 17, 2026

Every second counts during CPR. In case of cardiac arrest, an AED must be used as quickly as possible, but in practice, first responders regularly encounter a practical question: what do you do if the victim is wearing a bra? Should it be removed before the electrodes can be placed?

At AEDwijzer, we regularly receive this question. Based on the current resuscitation guidelines and our practical experience, we clearly present the facts.

Speed is the first priority

The chance of survival in case of cardiac arrest decreases by 10% per minute without treatment. Every second of delay before the first shock counts. Completely unfastening or cutting a bra costs valuable time and is completely unnecessary in the vast majority of cases.

Where do you place the electrodes?

The AED electrodes must always be placed directly on the bare skin. The two standard positions are:

1. Top right of the chest, directly below the collarbone
2. Bottom left of the armpit, on the rib cage

Can you reach both positions without unfastening the bra? Then leave it on and act immediately.

Slide, don't remove

If the bra obstructs correct electrode placement, for example with a wide or tight model, the approach is simple: slide the bra up. By sliding the bra upwards, the skin under the armpit becomes free, so the electrode can be placed correctly and quickly. Routine removal is not necessary and is also not supported by the current resuscitation guidelines of the European Resuscitation Council (ERC).

Does the underwire affect the AED shock?

No. The metal underwire in a bra does not cause any noticeable disturbance of energy transfer and does not lead to additional injury to the victim. You do not need to take this into account during assistance.

In summary: keep it simple

• Always place the electrodes on the bare skin.
• Slide the bra up if necessary for correct electrode placement.
• Do not waste time completely unfastening or removing clothing.
• The underwire is not an obstruction; act immediately.

If you have any doubts about the correct approach to CPR, or if you want to train your team with an AED trainer? Contact us or view our range of training equipment.

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