An automated external defibrillator, the AED including: - a plurality of electrodes adapted to interface with an exterior surface of a patient; - defibrillation circuitry adapted to generate and deliver a defibrillation shock to the patient via the electrodes; - patient monitoring circuitry adapted to sense cardiac activity of the patient; and - a controller interfaced with the patient monitoring circuitry and the defibrillation circuitry, the controller being configured to recognize if a patient condition is treatable by defibrillation shock or by cardiopulmonary resuscitation based on the sensed cardiac activity and to control generation and delivery of the defibrillation shock in response to a patient condition that is treatable by the defibrillation shock; and - electrical CPR circuitry interfaced with the controller to generate and deliver medium voltage therapy via the electrodes in response to the patient condition being treatable by CPR, the MVT producing both a hemodynamic effect and a respiratory effect in the patient and consisting of: A first pulsed output for generating a coronary perfused pulse having a pulsed output voltage of between 75- 300 V, a pulsed output current of between 0.5-6.0 A, a pulsed packet rate of between 70- 100 packets/minute, a pulsed packet duration of between 80-120 ms, an intra-packet pulse duration of between 2.0-6.0 ms, and an intra-packet pulse rate of between 30-75 Hz, and A second pulsed output for generating a respiration having a pulsed output voltage of between 75-300 V, a pulsed output current of between 50-500 mA, a pulsed packet rate of between 10-30 packets/minute, a pulsed packet duration of between 0.5-3.0 second, an intra-packet pulse duration of between 0.05 and 0.2 ms, and an intra-packet pulse rate of between 25-150 Hz. - a plurality of electrodes adapted to interface with an exterior surface of a patient; - defibrillation circuitry adapted to generate and deliver a defibrillation shock to the patient via the electrodes; - patient monitoring circuitry adapted to sense cardiac activity of the patient; and - a controller interfaced with the patient monitoring circuitry and the defibrillation circuitry, the controller being configured to recognize if a patient condition is treatable by defibrillation shock or by cardiopulmonary resuscitation based on the sensed cardiac activity and to control generation and delivery of the defibrillation shock in response to a patient condition that is treatable by the defibrillation shock; and - electrical CPR circuitry interfaced with the controller to generate and deliver medium voltage therapy via the electrodes in response to the patient condition being treatable by CPR, the MVT producing both a hemodynamic effect and a respiratory effect in the patient and consisting of: A first pulsed output for generating a coronary perfused pulse having a pulsed output voltage of between 75- 300 V, a pulsed output current of between 0.5-6.0 A, a pulsed packet rate of between 70- 100 packets/minute, a pulsed packet duration of between 80-120 ms, an intra-packet pulse duration of between 2.0-6.0 ms, and an intra-packet pulse rate of between 30-75 Hz, and A second pulsed output for generating a respiration having a pulsed output voltage of between 75-300 V, a pulsed output current of between 50-500 mA, a pulsed packet rate of between 10-30 packets/minute, a pulsed packet duration of between 0.5-3.0 second, an intra-packet pulse duration of between 0.05 and 0.2 ms, and an intra-packet pulse rate of between 25-150 Hz. A first pulsed output for generating a coronary perfused pulse having a pulsed output voltage of between 75- 300 V, a pulsed output current of between 0.5-6.0 A, a pulsed packet rate of between 70- 100 packets/minute, a pulsed packet duration of between 80-120 ms, an intra-packet pulse duration of between 2.0-6.0 ms, and an intra-packet pulse rate of between 30-75 Hz, and A second pulsed output for generating a respiration having a pulsed output voltage of between 75-300 V, a pulsed output current of between 50-500 mA, a pulsed packet rate of between 10-30 packets/minute, a pulsed packet duration of between 0.5-3.0 second, an intra-packet pulse duration of between 0.05 and 0.2 ms, and an intra-packet pulse rate of between 25-150 Hz.