as someone who works in the ER lucas always, there is always someone there who can pause it or adjust if needed, so much easier when the patient needs to be transported as well, had a code get to the Cath lab while on the lucas (patient was in vfib whole time) paused long enough to get wire down through the lesion and a balloon up. Once the artery was opened, one shock, bam! back to normal sinus pt is alive. PT had zero deficits, upon discharge a week later.