Portable egg signaling device

A portable ECG signaling device (12), comprising a housing (15) supporting a plurality of chest and limb electrodes (16, 17, 18, 19) for affixing to different parts of a patient's body (10) so as to measure the patient's rhythm strip and 12-lead ECG. An ECG signaling circuit (65) within the housing is adapted to collect and transmit in real time fractional ECG data on at least two output channels in parallel, thereby allowing complete ECG data to be transmitted in less time than could be done by collecting and transmitting the complete ECG data serially on a single output channel in real time. The ECG signaling circuit is preferably adapted to transmit on a first output channel the rhythm strip measured with two of the electrodes, and transmit on at least second and third output channels respective samples or functions thereof measured by predetermined ones of the chest and limb electrodes.