Lack of blood supply to an area of tissue due to a blockage in the circulation to that area is known as:
A. interval.
B. ischemia.
C. dysrhythmia.
D. infarct.
Answer: B
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Which of the following is true of the left ventricle?
A) During contraction, the diameter of the ventricular chamber decreases. B) It is thicker than the right ventricle. C) During contraction, the distance between the heart's apex and base decreases. D) All of the above
A 78-year-old nursing home patient is found to have severe pedal edema. His neck veins are flat. No adventitious sounds are present in the lung fields. There is no abdominal distention. The patient reportedly spends 12 to 14 hours a day sitting in front of the TV with his feet in a dependent position. The edema of his ankles and feet probably results from:
a. right-sided heart failure. b. immobility and the dependent position of his feet. c. liver disease. d. left-sided heart failure.