Figure 3
From: Bench-to-bedside review: An approach to hemodynamic monitoring - Guyton at the bedside
Approach to management of hypotension. Blood pressure is determined by cardiac output (Q) and systemic vascular resistance (SVR). If Q is normal, the primary reason for a low Q is a decrease in SVR. If Q is decreased, this is the primary problem and Q could be decreased because of a decrease in cardiac function or a decrease in return function. These can be separated by examining the central venous pressure (CVP). Potential therapies are also shown. NE, norepinephrine. Pra, right atrial pressure.