Abstract: An electrode assembly for cardiac output monitoring comprising a first pair of electrodes consisting of a first spot injection electrode for placement adjacent the xiphoid process for injecting a signal thereat and a first elongated conductive strip electrode for receipt of the signal at the xiphoid process, and a second pair of electrodes consisting of a second injection spot electrode for placement adjacent the neck for injecting a second signal thereat, a second elongated strip electrode for receipt of the second signal at the patient's neck, and a single connector assembly connected to all of the electrodes of the first and second pairs of electrodes and to a single cable connector for coupling the electrodes to a monitoring apparatus.