Baby Eve’s mom came in with contractions, and her vitals were troubling: her heart rate was high, in the 120s. The hospitalist started running tests, doing an EKG, an echo, and getting a full workup to figure out what was wrong.“And then dad got the bright idea, ‘Hey, we’ve been tracking her pulse on the Delfina app,’” said Dr. Rios.  “And when we saw it at home she was running 118 to 120, so it was like ‘Ok, well this is your normal.’”