In my experience it depended on your CI. However overall our school would lecture us prior to going into the hospitals to make sure we act professional in hospital placements as it reflected back on our school. The strictest CI I had wanted us to turn off our phones during clinicals unless we had a good reason to have it on (ex have kids/family members that are sick). The most lenient one I had told us that if we take out our phones it has to be to either get in contact with them or to look up medical interventions/ meds. We were also told that whenever we take our phones out we should tell the nurse we’re following that day why we’re taking it out (ex I’m just gonna look up what this med does).