Ch 39 Oxygenation and perfusion Flashcards
Adventitious
Abnormal breath sounds heard over the lungs
Alveoli
Small air sacs at the end of the terminal bronchioles that are the site of gas exchange 
Angina
A temporary imbalance between the amount of oxygen needed by the heart and the amount delivered to the heart muscles
Arterial blood gas
A diagnostic test examining arterial blood; used to determine the pressure exerted by oxygen and carbon dioxide in the blood
Atelectasis
Incomplete expansion or collapse of part of the lungs
Atria
Upper chambers of the heart
Atrioventricular bundle
A bundle of modified heart muscle that transmits the cardiac impulse from the atrialventricular node to the ventricles, causing them to contract
Atrioventricular node AV
A node of specialized heart muscle located in the septal wall of the right atrium; receives impulses from the sinoatrial node and transmits them to the atrioventricular bundle
Bradypena 
Slow rate of breathing
Bronchial
Those heard over the larynx and trachea are high-pitched, harsh blowing sounds, with sound on expiration being longer than inspiration
Bronchodilator
Medication that relaxes contractions of smooth muscles of the bronchioles
Bronchovesicular
Normal breath sounds heard over the main stream bronchus; they are moderate blowing sounds, with inspiration equal to expiration
Capnography
A method to monitor ventilation and, indirectly, blood flow through the lungs
Cardiopulmonary
Relating to the heart and the lungs
Cardiovascular
Relating to the heart and blood vessels
Cilia
Microscopic, hair-like projections that propel mucus toward the upper airway so that it can be expectorated
Crackles
Fine, crackling sounds made as air moves through wet secretions in the lungs
Diffusion
Tendency of solutes to move freely throughout a solvent from an area of higher concentration to an area of lower concentration until. equilibrium is established
Dyspnea
Difficult or labored breathing
Dysrhythmia
An abnormal cardiac rhythm
Electrocardiogram ECG
Graphic record produced by the electrocardiograph
Endotracheal tube
Polyvinyl chloride airway that is inserted through the nose or the mouth into the trachea, using a Laryngoscope as a guide
Expiration
Active breathing out
Hyperventilation
Condition in which there is more than the normal amount of air entering and leaving the lungs