16. A 62-year-old man comes to the emergency department because of chest pain. Cardiac catheterization shows blockage of the circumflex branch of the left coronaryartery. The occlusion of this vessel most likely damaged which of the following areas of the heart?A) Anterior wall of left ventricleB) Inferior wall of left ventricleC) Interventricular septumD) Lateral wall of left ventricleE) Right ventricle

The two main coronary arteries are the right coronary artery (RCA) and the left main coronary artery…

Answered: 16 A 62-year-old man comes to the…

Phlebotomy Essentials

6th Edition

ISBN:9781451194524

Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Chapter1: Phlebotomy: Past And Present And The Healthcare Setting

Section: Chapter Questions

Problem 1SRQ

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If the vagal nerves to the heart were cutthe result would be that A) the heart would stop, since the vagal nerves trigger the heart to contract B) the AV node would become the pacemaker of the heart D) the heart rate would not be affected E) the heart rate would increase
Which of the following would most likely cause a baroreflex-mediatedincrease in heart rate?A)Intravenous administration of an alpha- 1 adrenergic receptor agonist.B)Intravenous administration of vasopressin.C)Stimulation of the arterial baroreceptor afferents.D)Profuse sweating for an hour without any fluid replacement.
Ch. 5: A patient with a connective tissue disease experiences pulmonary vascular resistance. With time, you would expect the patient to show: a) no obvious changes in heart structure or function b) increased thickness of the right ventricular wall c) increased cardiac output from the right ventricle d) increased cardiac output from the left ventricle O e) increased thickness of the left ventricular wall
What malfunction would cause regurgitation in heart?
72. A 42-year-old man undergoes angioplasty to open an atherosclerotic blockage at the origin of the circumflex artery A balloon catheter is introduced in the femoral artery at the femoral triangle. Which of the following is the most likely sequence of structures traversed by the catheter during this procedure? O A) Common iliac artery-aorta right coronary artery O B) Common iliac artery-pulmonary trunk left coronary artery C) External iliac artery-aorta-left coronary artery OD) External iliac artery-pulmonary trunk-left coronary artery E) Internal iliac artery aorta left coronary artery OF) Internal iliac artery aorta right coronary artery
2) attached to the heart. You are looking at the heart as it would appear in the chest of a person sitting in front of you. a)_Identify the structures (A-H). Hint: All structures are chambers of the heart or vessels b) Label the BASE and APEX of the heart in the diagram. c) List (in order) 7 structures in the path of blood as it travels from structure F in the diagram to structure A in the diagram (the names of F and A are included in your list of 7!). You will need to include 2 types of peripheral vessels not shown in the diagram in your list in order to complete the circuit. | A H F D A В E F G H
Which nerve(s) transmit an action potential from the brain to the heart? a) the vagus nerve only b) the vagus and glossopharyngeal nerves c) the vagus and phrenic nerves d) the phrenic and glossopharyngeal nerves e) the phrenic nerve only
Which of the following changes happen at birth or a couple hours afterward? A) The connection between the right and left ventricles gets sealed. B) The connection between the left pulmonary artery and aorta gets sealed. C) The connection between the right ventricle and pulmonary trunk gets sealed. D) The connection between the left atrium and left ventricles gets sealed.
1) Which of the events below occurs when the semilunar valves are open? A) Ventricles are in diastole. B) Blood leaves pulmonary arteries and the aorta. CAV valves are closed. D) Both A & B E.) None of the above
4) A) Calculate the Systolic Pressure of a 65 years old man if the diastolic blood pressure is 90 mmHg and stroke volume of 70 ml/beat. Total Peripheral Resistance is 19mmHg.min/L. Assume person is healthy and has a normal heart rate. B) Calculate Left ventricular end-diastolic volume (LVEDV) when the mean ejection fraction is 80 % ?
An increase in mean blood pressure may be due to? a) an increase in heart rate b) an increase in peripheral resistance c) an increase in stroke volume
12

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