Test Bank for ECGs Made Easy 6th Edition by Barbara J Aehlert 9780323401302 Chapters 1-10 Complete Guide.
Test Bank for ECGs Made Easy 6th Edition by Barbara J Aehlert 9780323401302 Chapters 1-10 Complete Guide.
Test Bank for ECGs Made Easy 6th Edition by Barbara J Aehlert 9780323401302 Chapters 1-10 Complete Guide.
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ECGs MADE EASY 6TH EDITION BY BARBARA AEHLERT
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TEST BANK ECGs MADE EASY 6TH EDITION | AEHLERT TEST BANK MEDCONNOISSEUR ECGs Made Easy 6th Edition by Barbara Aehlert Test Bank Table of Contents: Chapter 1. Anatomy & Physiology Chapter 2. Basic Electrophysiology Chapter 3. Sinus Mechanisms Chapter 4. Atrial Rhythms Chapter 5. Junctiona l Rhythms Chapter 6. Ventricular Rhythms Chapter 7. Atrioventricular Blocks Chapter 8. Pacemaker Rhythms Chapter 9. Introduction to the 12 -Lead ECG Chapter 10. Post -Test MEDCONNOISSEUR Chapter 01: Anatomy and Physiology Aehlert: ECGs Made Easy, 6th Edition MULTIPLE CHOICE 1. The apex of the heart is formed by the . a. tip of the left ventricle b. tip of the right atrium c. right atrium and right ventricle d. left atrium and left ventricle ANS: A The heart’s apex, or lower portion, is formed by the tip of the left ventricle. The apex lies just above the diaphragm, between the fifth and sixth ribs, in the midclavicular line. OBJ: Identify the surfaces of the heart. 2. The left atrium receives blood from the . a. pulmonary veins b. aorta c. pulmonary arteries d. inferior vena cava ANS: A The left atrium receives freshly oxygenated blood from the lungs via the right and left pulmonary veins. OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each. 3. The anterior surface of the heart consists primarily of the . a. left atrium b. right atrium c. left ventricle d. right ventricle ANS: D The front (anterior) surface of the heart lies behind the sternum and costal cartilages. It is formed by portions of the right atrium and the left and right ventricles. However, because the heart is tilted slightly toward the left in the chest, the right ventricle is the area of the heart that lies most directly behind the sternum. OBJ: Identify the surfaces of the heart. 4. Blood pressure is determined by multiplied by . a. stroke volume; heart rate b. heart rate; cardiac output c. cardiac output; peripheral vascular resistance d. stroke volume; peripheral vascular resistance ANS: C Blood pressure is equal to cardiac output multiplied by peripheral vascular resistance. MEDCONNOISSEUR OBJ: Identify and explain the components of blood pressure and cardiac output. 5. The right atrium receives venous blood from the head, neck, and thorax via the , from the remainder of the body via the , and from the heart via the . a. coronary sinus; superior vena cava; inferior vena cava b. superior vena cava; coronary sinus; inferior vena cava c. inferior vena cava; superior vena cava; coronary sinus d. superior vena cava; inferior vena cava; coronary sinus ANS: D The right atrium receives blood low in oxygen from the superior vena cava, which carries blood from the head and upper extremities; the inferior vena cava, which carries blood from the lower body; and the coronary sinus, which is the largest vein that drains the heart. OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each. 6. The heart is divided into chambers but functions as a -sided pump. a. two; four b. three; two c. four; two d. four; three ANS: C The heart has four chambers: two atria and two ventricles. The right and left sides of the heart are separated by an internal wall of connective tissue called a septum . The interatrial septum separates the right and left atria. The interventricular septum sepa rates the right and left ventricles. The septa separate the heart into two functional pumps. The right atrium and right ventricle make up one pump. The left atrium and left ventricle make up the other. OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each. 7. Stimulation of alpha1 receptors results in . a. increased heart rate b. peripheral vasoconstriction c. constriction of bronchial smooth muscle d. increased force of myocardial contraction ANS: B Alpha1 receptors are found in the eyes, blood vessels, bladder, and male reproductive organs. Stimulation of alpha1 receptor sites results in constriction. OBJ: Compare and contrast the effects of sympathetic and parasympathetic stimulation of the heart. 8. Which side of the heart is a low-pressure system that pumps venous blood to the lungs? a. Left b. Right ANS: B The job of the right side of the heart is to pump unoxygenated blood to and through the lungs to the left side of the heart. This is called the pulmonary circulation . The right side of the heart is a low-pressure system. MEDCONNOISSEUR
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