So, I have to learn to interpret ECG results, but only so I can alert the patient's practitioner of an abnormal result. I don't get to dramatically yell "She's in V-fib!" like in those medical dramas on TV, since actually diagnosing the patient is outside an MA's scope of practice. Paradoxically, it seems that I am allowed to grab an AED to mitigate the problem that I can't diagnose with countershocks.