Multiple Choice
During mild exertion a 70-year-old man has an ischemia-induced myocardial infarction and dies from ventricular fibrillation. In this patient, which factor was most likely to increase the tendency of the heart to fibrillate after the infarction?
A) Increased parasympathetic stimulation of the heart
B) A decrease in ventricular diameter
C) Low potassium concentration in the heart extracellular fluid
D) A more negative ventricular membrane potential
E) Current of injury from the damaged area
Correct Answer:

Verified
Correct Answer:
Verified
Q2: At the onset of exercise, the mass
Q3: Which of the following will elevate the
Q4: A 60-year-old man experienced an ischemia-induced myocardial
Q5: Which of the following increases the risk
Q6: Which of the following is normally associated
Q7: The majority of venous blood flow leaves
Q8: Which is usually the most important controller
Q9: Which of the following normally causes vasodilation
Q11: Which of the following vascular beds experiences
Q12: A 60-year-old man has been told by