DAANCE Exam Complete Study Guide – Questions & Answers

The "T" wave on an ECG tracing is evidence of what change in polarization? ️Ans - Repolarization of the ventricles What anatomical structure located at the top of the larynx closes the airway and prevents foreign bodies from entering the trachea? ️Ans - The epiglottis Which structure is most likely to cause obstruction of the airway when an anesthetized patient is lying in a supine position? ️Ans - The tongue What is the "supine" position? ️Ans - Pt laying face up What is the "fowlers" position? ️Ans - Pt is sitting straight up or leaning slightly back What is the "trendelenberg" position? ️Ans - Pt's head is slightly lower than their feet Blood is pumped to the lungs from the heart through which vessel? ️Ans - pulmonary artery What is the normal sequence for the flow of blood through the heart and lungs? ️Ans - Right atrium, right ventricle, pulmonary artery, lungs, pulmonary vein, left atrium, left ventricle, aorta The small sac like structures located at the end of the respiratory tract in which oxygen and carbon dioxide are exchanged are called? ️Ans - Aveoli Which structure may be involved in a pt who has an upper respiratory infection? ️Ans - nose, sinuses, and pharynx