Welding with currents above 160 amps may temporarily affect normal ICD function. Check with your doctor. They might not know much about welding, but they can talk to you about interference with your ICD. Note: Aprons or vests will not effectively shield the ICD from the electromagnetic energy generated by welding equipment. Follow these safety precautions to avoid interference: Limit welding to currents less than 160 amps. Work in a dry area, and wear dry gloves and shoes. Maintain a 2-foot distance between the welding arc and your ICD. Place the welding unit approximately 5 feet away from the work area. Keep the welding cables close together and as far away from your heart device as possible. Connect the ground clamp to the metal as close to the point of welding as possible. Arrange the work so the handle and rod will not contact the metal being welded if they are accidentally dropped. Wait several seconds between attempts when having difficulty starting a weld. Work in an area that offers firm footing and plenty of room for movement. Work with an informed person who understands these suggestions. Immediately stop welding and step away from the area if you start feeling lightheaded, dizzy, or you believe your ICD has delivered a shock.