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Lab Writeup2 - Cardiovascular Anatomy and ECG Lab Writeup...

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Cardiovascular Anatomy and ECG Lab Writeup Names 30 pts Instructions: You may print out this document and neatly hand-write your answers for I-II on it. You may work with your lab partners ( 4) and turn this in together. All partners will receive the same grade. Identical reports between groups will be considered academic dishonesty. I. Case Study—Myocardial infarction Steve, a 53-yr old lawyer, has been experiencing chest pains, fatigue, and various other symptoms for several weeks. He has a family history of cardiovascular problems including atherosclerosis furthermore, he is about 75 lbs overweight. When he finally made an appointment with a cardiologist, he was subjected to a battery of tests including electrocardiography, echocardiography, pressure catheterization, and determination of cardiac enzyme levels. Steve’s cardiologist diagnosed a recent mild myocardial infarction (MI) and concluded that a small portion of Steve’s ventricular muscle was dead. b. Which pathological ECG below most likely belongs to Steve? Circle one: A B C D (note amplitude of complexes mostly due to placement of electrodes) 2. Briefly explain why an MI would produce this ECG. 3. Body type plays a role in determining the electrical axis of the heart. If Steve is average in height and broad-chested, you would expect the electrical axis of his heart to be (circle one): < 60 o = 60 o > 60 o 4. Myocardial infarctions are usually caused by downstream effects of ischemia.
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