Newborn nursery infant that has bradycardia

Case

I’m calling from the newborn nursery and I’m the charge nurse on for today. I have a 1-day old newborn infant that on auscultation has a slow heart rate. I counted an average pulse rate of 90 beats per minute. The baby looks well and seems to be feeding OK. I’ve called the pediatrician and she’s coming to see the baby this afternoon after clinic, but she asked me to call you. Anything I should be worried about?