The 2D echocardiogram shows that J.M.'s left ventricular ejection fraction (EF) is 49%
Explain what this test results mean with regard to J.M.'s heart function.
The ejection fraction refers to the amount of blood that is pumped out of the heart's ventricle with
each heartbeat and is measured as a percentage. EF is generally measured only in the left ventricle
(LV). An LV EF of 55% or higher is considered within normal range. J.M.'s EF is decreased and reflects
the weakening of his heart muscle as a result of the HF.
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ANS:
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A) A lymphocytes B) D lymphocytes C) T lymphocytes D) S lymphocytes
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