The formula to calculate the Ejection Fraction Percentage (EF) is:
\[ EF = \left( \frac{SV}{EDV} \right) \times 100 \]
Where:
Let's say the stroke volume (SV) is 70 mL and the end-diastolic volume (EDV) is 120 mL. Using the formula:
\[ EF = \left( \frac{70}{120} \right) \times 100 \approx 58.33 \% \]
So, the ejection fraction percentage is approximately 58.33%.
Ejection fraction (EF) is a measurement, expressed as a percentage, of how much blood the left ventricle pumps out with each contraction. It is a key indicator of heart health and function. A normal ejection fraction ranges from 55% to 70%. An ejection fraction below this range may indicate heart disease or heart failure, while an ejection fraction above this range can be a sign of hypertrophic cardiomyopathy or other conditions.
Formula: \( \text{Ejection Fraction} = \frac{\text{Stroke Volume}}{\text{End-Diastolic Volume}} \times 100 \)
Example: \( \text{Ejection Fraction} = \frac{70}{120} \times 100 \)
Formula: \( \text{Normal Ejection Fraction} = 55% \text{ to } 70% \)
Example: \( \text{Normal Ejection Fraction} = 60% \)
Formula: \( \text{Ejection Fraction} = \frac{\text{Stroke Volume}}{\text{End-Diastolic Volume}} \times 100 \)
Example: \( \text{Ejection Fraction} = \frac{80}{140} \times 100 \)
