DOT Certification Practice Exam

The normal Left Ventricular Ejection Fraction (LVEF) range is generally accepted to be between 55% and 70%. This measurement is critical as it indicates the percentage of blood that is pumped out of the left ventricle with each heartbeat, providing insight into the heart's overall efficiency and function.

When the LVEF falls below 55%, it may suggest potential heart dysfunction or pathology, while values above 70% can sometimes reflect conditions such as increased contractility or hyperdynamic circulation, which may also require evaluation in clinical contexts. The classification of LVEF helps in assessing heart health, guiding treatment decisions, and determining prognosis for individuals with various cardiovascular conditions. Understanding these thresholds is vital for healthcare professionals in diagnosing and managing heart conditions effectively.