An echocardiogram shows an ejection fraction of 57%. This finding most closely indicates which of the following about systolic function?

An echocardiogram shows an ejection fraction of 57%. This finding most closely indicates which of the following about systolic function?

• A. Normal (preserved) ejection fraction
• B. Reduced ejection fraction
• C. Severely reduced ejection fraction
• D. Hyperdynamic ejection fraction

Answer: (A)

An ejection fraction of 57% indicates preserved systolic function because EF measures the percentage of blood the left ventricle pumps out with each beat. In adults, a normal range is about 55–70%, so 57% falls within that range and reflects normal systolic performance. Values well below this range (typically under 40%) point to reduced systolic function, with severe reductions often under 30–35%. An EF above roughly 70% would be considered hyperdynamic. So, a 57% EF best signals normal systolic function.

An ejection fraction of 57% indicates preserved systolic function because EF measures the percentage of blood the left ventricle pumps out with each beat. In adults, a normal range is about 55–70%, so 57% falls within that range and reflects normal systolic performance. Values well below this range (typically under 40%) point to reduced systolic function, with severe reductions often under 30–35%. An EF above roughly 70% would be considered hyperdynamic. So, a 57% EF best signals normal systolic function.