Would definitely not have called for a sinus brady/sinus arrhythmia. Yes, there were parameters, but as nurses, we are taught to critically think. And if the pt is stable, good VS, asymptomatic...there is no reason to call.
However, had it been a fib, second or third-degree block, junctional escape, ventricular escape, etc. would definitely have called, atropine in one hand, pacer pads in the others.
p.s. a good clue was that the HR came up when pt awoke. I see tons of patients on metoprolol brady down to 40s when they are deep asleep, once they wake up their rates go up too.