This is why I'm excited about the development of the Apple watch and similar ubiquitous metrics. From the heart rate alone you could determine many significant cardiac events, e.g. A-fib, PSVT, heart blocks...
Yeah -- pervasive monitoring gives you three awesome things:
1) Per-user baselines (e.g. my natural temperature is 36C) in a non-clinical environment (to avoid "white coat" syndrome; from working in a hospital, my BP spikes to 140/90 when I'm around incompetent providers, and is 120/80 normally)
2) Great longitudinal measurements to see changes over time
Unfortunately the FDA is very reluctant to allow use of features like that. E.g. the watch already has the hardware to be a pulse oximeter, but that's not one of the advertised features.
1) Per-user baselines (e.g. my natural temperature is 36C) in a non-clinical environment (to avoid "white coat" syndrome; from working in a hospital, my BP spikes to 140/90 when I'm around incompetent providers, and is 120/80 normally)
2) Great longitudinal measurements to see changes over time
3) Detecting emergencies instantly