Multiple Choice
Which of the following is the most likely consequence of a very rapid heart rate?
A) decreased ventricular filling (with blood)
B) failure of the AV valves to open
C) failure of the SA node to fire
D) failure of the cardiac impulse to enter the His-Purkinje system
Correct Answer:

Verified
Correct Answer:
Verified
Q20: Most of the symptoms of acute left-sided
Q30: Digoxin,a drug used in the treatment of
Q34: Which of the following is most likely
Q35: Which of the following contains 70 ml?<br>A)
Q35: A stenotic aortic valve<br>A)causes right ventricular hypertrophy
Q41: What is the term that refers to
Q52: Increased afterload (e.g. ,hypertension)<br>A)is usually caused by
Q57: During atrial systole,the<br>A)AV valves are closed.<br>B)ventricles are
Q68: Heart rate and stroke volume determine<br>A)hematocrit.<br>B)total blood
Q72: An ejection fraction of 30% is<br>A)normal.<br>B)characteristic of