In general, peripheral nerve blocks are safe. However, problems may occur, including: • Infection at the injection site. • Bleeding. • Allergic reactions to medicines. • Damage to other structures or organs, such as a blocked nerve. Nerve damage can be temporary or permanent. • Bruises. • Pain. WHAT ARE THE BENEFITS OF A PERIPHERAL NERVE BLOCK? The main advantage of a peripheral nerve block is that you will not feel pain during the procedure and will not be exposed to the risks associated with general anesthesia. Other benefits may include: • Reduced need for painkillers after the procedure. • Fewer side effects from painkillers taken after the procedure. • Lower risk of blood clots. • Faster recovery. HOW IS A PERIPHERAL NERVE BLOCK PERFORMED? • An IV tube will be inserted into your hand or arm. • You may be given a medicine to help you relax (sedative). • The nerve can be located using: ○ An ultrasound. This is an imaging test that uses sound waves to create a picture of the area. ○ A nerve stimulator. This is a device that activates the nerve and causes the muscles to fire