Hey,
Getting an EMT certification is a definite plus. I got mine a little over a year ago. If you work as an EMT, you get a lot of patient exposure.
Even if you just get the certification and don't work as one, you still get a lot of important life saving training that you wouldn't get otherwise and I think adcoms would like that.
Also, its something unique that you could possibly talk about with adcoms at your interview!
Hope this helps