NUR168 Ch. 39 Oxygenation and Perfusion
Key Terms UPDATED ACTUAL Exam
Questions and CORRECT Answers
adventitious - CORRECT ANSWER - abnormal breath sound heard over the lungs
alveoli - CORRECT ANSWER - small air sacs at the end of the terminal bronchioles that
are the site of gas exchange
angina - CORRECT ANSWER - a temporary imbalance between the amount of oxygen
needed by the heart and the amount delivered to the heart muscles
arterial blood gas - CORRECT ANSWER - a diagnostic test examining arterial blood; used
to determine the pressure exerted by oxygen and carbon dioxide in the blood
atelectasis - CORRECT ANSWER - incomplete expansion or collapse of a part of the
lungs
atria - CORRECT ANSWER - upper chambers of the heart
atrioventricular bundle - CORRECT ANSWER - a bundle of modified heart muscle that
transmits the cardiac impulse from the atrioventricular node to the ventricles, causing them to
contract
atrioventricular (AV) node - CORRECT ANSWER - 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
bradypnea - CORRECT ANSWER - slow rate of breathing
, bronchial - CORRECT ANSWER - those heard over the larynx and trachea are high-
pitched, harsh "blowing" sounds, with sound on expiration being longer than inspiration
bronchodilator - CORRECT ANSWER - medication that relaxes contractions of smooth
muscles of the bronchioles
bronchovesicular - CORRECT ANSWER - normal breath sounds heard over the mainstem
bronchus; they are moderate blowing sounds, with inspiration equal to expiration
capnography - CORRECT ANSWER - a method to monitor ventilation and, indirectly,
blood flow through the lungs
cardiopulmonary - CORRECT ANSWER - relating to the heart and the lungs
cardiovascular - CORRECT ANSWER - relating to the heart and blood vessels
cilia - CORRECT ANSWER - microscopic, hair-like projections that propel mucus toward
the upper airway so that it can be expectorated
circulation - CORRECT ANSWER -
crackles - CORRECT ANSWER - fine, crackling sounds made as air moves through wet
secretions in the lungs
diffusion - CORRECT ANSWER - 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 - CORRECT ANSWER - difficult or labored breathing
Key Terms UPDATED ACTUAL Exam
Questions and CORRECT Answers
adventitious - CORRECT ANSWER - abnormal breath sound heard over the lungs
alveoli - CORRECT ANSWER - small air sacs at the end of the terminal bronchioles that
are the site of gas exchange
angina - CORRECT ANSWER - a temporary imbalance between the amount of oxygen
needed by the heart and the amount delivered to the heart muscles
arterial blood gas - CORRECT ANSWER - a diagnostic test examining arterial blood; used
to determine the pressure exerted by oxygen and carbon dioxide in the blood
atelectasis - CORRECT ANSWER - incomplete expansion or collapse of a part of the
lungs
atria - CORRECT ANSWER - upper chambers of the heart
atrioventricular bundle - CORRECT ANSWER - a bundle of modified heart muscle that
transmits the cardiac impulse from the atrioventricular node to the ventricles, causing them to
contract
atrioventricular (AV) node - CORRECT ANSWER - 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
bradypnea - CORRECT ANSWER - slow rate of breathing
, bronchial - CORRECT ANSWER - those heard over the larynx and trachea are high-
pitched, harsh "blowing" sounds, with sound on expiration being longer than inspiration
bronchodilator - CORRECT ANSWER - medication that relaxes contractions of smooth
muscles of the bronchioles
bronchovesicular - CORRECT ANSWER - normal breath sounds heard over the mainstem
bronchus; they are moderate blowing sounds, with inspiration equal to expiration
capnography - CORRECT ANSWER - a method to monitor ventilation and, indirectly,
blood flow through the lungs
cardiopulmonary - CORRECT ANSWER - relating to the heart and the lungs
cardiovascular - CORRECT ANSWER - relating to the heart and blood vessels
cilia - CORRECT ANSWER - microscopic, hair-like projections that propel mucus toward
the upper airway so that it can be expectorated
circulation - CORRECT ANSWER -
crackles - CORRECT ANSWER - fine, crackling sounds made as air moves through wet
secretions in the lungs
diffusion - CORRECT ANSWER - 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 - CORRECT ANSWER - difficult or labored breathing
