I had a heart monitor for 7 days and I was scarred by the electrical pads, which were hypoallergenic. The nurse said she’d never seen anything like it before and asked if I’d ever tested positive for metals in my blood. At the time I hadn’t but have since had high ferritin levels and wonder if it’s possible that was the cause? I had three pads and they all burnt my skin and I still have round circlular scars where the pads were four months later. It was really painful and was burning my skin, which actually blistered, but I had to keep them on for the full week because I had waited months for the test.
They’d also had problems getting a machine to work they tried three and they all faultered as soon as they connected them, the nurse said she’d never had the problem before but all three machines which were previously working fine seemed to break when they connected them up?