hi,I am a hospice nurse with a brand new patient have with end stage prostate cancer. He is new to us. Just found out he has a defibillator pacemaker. I think he is currently being shocked. He takes 5-6 breaths then 45-60 sec apnea, then a little shake, a moan, then takes his 5-6 breaths. family does not have any information about device. How can I tell for sure if it is firing and if it is , is there a way to turn it off?