DAANCE questions with correct answers

The "T" wave on an ECG tracing is evidence of what change in polarization? - Answer 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? - Answer The epiglottis Which structure is most likely to cause obstruction of the airway when an anesthetized patient is lying in a supine position? - Answer The tongue What is the "supine" position? - Answer Pt laying face up What is the "fowlers" position? - Answer Pt is sitting straight up or leaning slightly back What is the "trendelenberg" position? - Answer Pt's head is slightly lower than their feet Blood is pumped to the lungs from the heart through which vessel? - Answer pulmonary artery What is the normal sequence for the flow of blood through the heart and lungs? - Answer 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? - Answer Aveoli