Chapter 1 Introduction to the Basics of Pathophysiology 1) Which pathophysiological concept should the nurse consider when developing a plan of care for a patient with myocardial ischemia? A) There is a decrease in the amount of oxygen and glucose reaching the myocardium. B) There is a lack of oxygen reaching the myocardium, but the supply of glucose is adequate. C) There is a lack of glucose reaching the myocardium, but the supply of oxygen is adequate. D) There is a complete lack of both oxygen and glucose reaching the myocardium. Answer: A Explanation: A) A decrease in blood flow to the myocardium means that there is a decrease in the amount of oxygen and glucose to the heart muscle. A related term is hypoxia, which refers to a lack of oxygen to tissue. This can occur from disruptions of the respiratory system. B) A decrease in blood flow to the myocardium means that there is a decrease in the amount of oxygen and glucose to the heart muscle. A related term is hypoxia, which refers to a lack of oxygen to tissue. This can occur from disruptions of the respiratory system. C) A decrease in blood flow to the myocardium means that there is a decrease in the amount of oxygen and glucose to the heart muscle. A related term is hypoxia, which refers to a lack of oxygen to tissue. This can occur from disruptions of the respiratory system. D) A decrease in blood flow to the myocardium means that there is a decrease in the amount of oxygen and glucose to the heart muscle. A related term is hypoxia, which refers to a lack of oxygen to tissue. This can occur from disruptions of the respiratory system.