Which of the following filtrations would result in the lowest entrance skin exposure to the patient?

What has the modern emergency medical services (EMS) system been developed to provide?

A) Trained medical personnel B) Safe emergency transportation C) Prompt emergency response D) Prehospital care

The QRS complex represents

A) atrial depolarization. B) atrial repolarization. C) ventricular depolarization. D) ventricular repolarization.