Abstract: A patient-specific electrode positioning apparatus and method allow the standard twelve-lead EKG test to be performed in an accurate and consistent manner by eliminating individual positioning of the six precordial electrodes for all but the first test on a particular patient. Each electrode is slidably mounted on a platform aligned on the torso of the patient. The mount containing each electrode is adjusted until the electrode is properly positioned for the test and then the mount is permanently fixed in place by a lock-down mechanism, leaving the electrodes permanently positioned on the platform so that, when the platform is aligned properly on the particular patient's torso utilizing a pre-adjusted index marker, the electrodes will be properly positioned for a repeat administration of the EKG test. In one embodiment, the platform is flexible plastic with a "reversed S" shape and embedded wires accessible at one end of the platform for connection to the EKG machine.