A method for performing impedance measurements on a subject. The method includes,in a processing system, causing at least one electrical signal to be applied tothe subject via first leads operatively connected to first electrodes providedon the subject, determining a first indication indicative of at least one firstelectrical signal measured via second leads operatively disconnected fromsecond electrodes positioned on the subject, determining a second indicationindicative of at least one second electrical signal measured via second leadsoperatively connected to second electrodes positioned on the subject, and determiningfrom the indications and the at least one applied signal, at least one instantaneousimpedance value.
