Emergency Care and Transportation of the Sick and Injured ...

c. Those with a history of AMI with an ejection fraction of less than 35%. i. Ejection fraction: Portion of blood ejected from the ventricle during systole. ii. Normal ejection fraction is 55-70% . iii. Measured with an echocardiogram, MRI, CT of the heart, or during cardiac catheterization. 4. Diagnosis may be difficult to make in the field. a. ................
................