A physician has a patient with an abnormal heart sound. After running some tests, the doctor decides that the patient has a heart murmur, but the condition is not severe enough to warrant open-heart surgery. Which of the following would lead the doctor
to make this determination?
A) The amount of blood flowing backward in the heart is not enough to strain the heart as it works harder to catch up.
B) The heart sounds are due to air moving through the system and cannot be removed via surgical techniques.
C) A heart murmur is actually caused by a harmless lung irregularity.
D) The amount of blood lost is easily replaced with a transfusion of extra blood.
Answer: A
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