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Chapter 41: Oxygenation Fundamentals of Nursing, 9th Edition MULTIPLE CHOICE 1. A nurse is teaching staff about the conduction of the heart. In which order will the nurse present the conduction cy... cle, starting with the first structure? 1. Bundle of His 2. Purkinje network 3. Intraatrial pathways 4. Sinoatrial (SA) node 5. Atrioventricular (AV) node a. 5, 4, 3, 2, 1 b. 4, 3, 5, 1, 2 c. 4, 5, 3, 1, 2 d. 5, 3, 4, 2, 1 ANS: B The conduction system originates with the SA node, the “pacemaker” of the heart. The electrical impulses are transmitted through the atria along intraatrial pathways to the AV node. It assists atrial emptying by delaying the impulse before transmitting it through the Bundle of His and the ventricular Purkinje network. 2. A nurse is teaching the patient with mitral valve problems about the valves in the heart. Starting on the right side of t [Show More]
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