After arriving at the ER, Leo was put on an iv and was administered nitroglycerin to cause coronary blood vessel dilation. Blood also was drawn for a series of tests including creatine kinase (CK or CK-MB) and troponins (sometimes referred to as cTnT & cTnI) levels. Results from these tests would later confirm an MI. Leo then was wheeled to the cardiac catherization lab where coronary angiography was performed with the following results: Circumflex artery - 20% blocked Right coronary artery - 15% blocked Left anterior descending artery (or anterior interventricular artery) - 80 % blocked Given the results of the angiogram, what part of his heart's muscle most likely was involved in the myocardial infarction? Explain your reasoning.
After arriving at the ER, Leo was put on an iv and was administered nitroglycerin to cause coronary blood vessel dilation. Blood also was drawn for a series of tests including creatine kinase (CK or CK-MB) and troponins (sometimes referred to as cTnT & cTnI) levels. Results from these tests would later confirm an MI. Leo then was wheeled to the cardiac catherization lab where coronary angiography was performed with the following results:
Circumflex artery - 20% blocked
Right coronary artery - 15% blocked
Left anterior descending artery (or anterior interventricular artery) - 80 % blocked
Given the results of the angiogram, what part of his heart's muscle most likely was involved in the myocardial infarction? Explain your reasoning.
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