Cardiac-Vascular Nursing Board Certification (CV-BC)

Which echocardiographic measurement is used to diagnose systolic heart failure and guide therapy initiation?

Left ventricular ejection fraction (LVEF) less than 40% diagnoses HFrEF Left ventricular end-diastolic volume greater than 150 mL E/A ratio less than 1.0 indicating diastolic dysfunction Tricuspid annular plane systolic excursion (TAPSE) less than 17mm

Correct Answer:

Left ventricular ejection fraction (LVEF) less than 40% diagnoses HFrEF

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