Cardiac index (CI) is a vasodynamic parameter that relates the cardiac output (CO) to body surface area (BSA),[1] thus relating heart performance to the size of the individual. The unit of measurement is litres per minute per square metre (l/min/m2).
Calculation
The index is usually calculated using the following formula:
where
- CI=Cardiac index
- BSA=Body surface area
- SV=Stroke volume
- HR=Heart rate
- CO=Cardiac output
Clinical significance
The normal range of cardiac index is 2.6 - 4.2 L/min per square meter.
If the CI falls below 1.8 L/min, the patient may be in cardiogenic shock.
References
 |
This health-related article is a stub. You can help Wikipedia by expanding it. |
|
||||||||||||||||||||||||||||||
This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)
