An LVEF within 55-70% is considered to reflect what about cardiac function?

An LVEF within 55-70% is considered to reflect what about cardiac function?

• A. Hyperdynamic circulation
• B. Mild systolic dysfunction
• C. Normal systolic function
• D. Diastolic dysfunction

Answer: (C)

LVEF measures how much blood the left ventricle pumps out with each heartbeat, reflecting systolic performance. A value in the 55–70% range is normal, meaning the heart is contracting well and ejecting a normal portion of its filled volume. If the EF were significantly lower, that would indicate systolic dysfunction. Diastolic dysfunction involves impaired filling and can occur with a normal EF, but the 55–70% range specifically supports normal systolic function. Hyperdynamic circulation would imply an EF higher than normal or unusually high cardiac output, not the standard normal range.

LVEF measures how much blood the left ventricle pumps out with each heartbeat, reflecting systolic performance. A value in the 55–70% range is normal, meaning the heart is contracting well and ejecting a normal portion of its filled volume. If the EF were significantly lower, that would indicate systolic dysfunction. Diastolic dysfunction involves impaired filling and can occur with a normal EF, but the 55–70% range specifically supports normal systolic function. Hyperdynamic circulation would imply an EF higher than normal or unusually high cardiac output, not the standard normal range.