By recording cyclic Stroke Volume (SV) along with the blood pressure waveform using the NIBP100A, and computing mean arterial pressure (MAP) using AcqKnowledge, it's possible to derive Systemic Vascular Resistance (SVR) and Left Cardiac Work (LCW). Divide MAP by SV to obtain a parameter proportional to SVR. Multiply MAP by SV to obtain a parameter proportional to LCW. The Macintosh version of AcqKnowledge includes a fully automated scoring and measurement system for bioimpedance data.