Cardiac Output Calculator
Cardiac output (CO) /Cardiac index (CI) is the volume of blood pumped through your heart every minute. An average healthy person has a cardiac output of 4-8 liters per minute. Considering that we have about 5 liters of blood in our body, this means that every drop of your blood goes through your heart at least once per minute. The easiest and least variable place to measure cardiac output is at the left ventricular outflow tract (LVOT).
| Normal cardiac output is 4-8 L/min |
| Normal cardiac index is 2.5-4 L/min/m² |
| Normal stroke volume is 60-100 ml/beat |
| Normal stroke volume index is 33-47 ml/beat/m² |
| arrhythmia, and severe metabolic acidosis.”}”> A low CO/CI may be observed with hypovolemia, hypoperfusion, shock, arrhythmia, and severe metabolic acidosis. |
A high CO/CI may be observed with hypoxia, the use of positive inotropes, early septic shock and anemia |
A low SV/SVI may be observed with impaired LV contractility, acidosis, hypoxemia, hypercapnia, increased afterload, decreased preload and tachycardia |
A high SV/SVI may be observed with bradycardia, the use of positive inotropes, and decreases in afterload |
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