BSN
Fundamentals of
Nursing Exam 3
Questions and
answers latest
update 2025/2026
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,lower airway functions -✔✔answer conduction of air
mucociliary clearance
production of pulmonary surfactant
cilia -✔✔answer trap and propel mucus
mucus can be produced better when thinned with -✔✔answer water
alveoli -✔✔answer allow for diffusion of gases
surfactant -✔✔answer maintains surface tension of alveoli to allow for diffusion of gases (keeps them
open)
ventilation -✔✔answer movement of air in and out of lungs
respiration -✔✔answer exchange of oxygen and carbon dioxide
diffusion (O2) -✔✔answer movement of O2 and CO2 between alveoli and capillaries
perfusion -✔✔answer capillary blood passes through body tissues
what normally stimulates body to breath -✔✔answer high levels of CO2
patients with chronic high CO2 levels breath because of a -✔✔answer hypoxic drive
applying supplemental O2 to patients with chronic high CO2 levels can result in -✔✔answer their body
"forgetting to breath"
loss of hypoxic drive
, hypoxia -✔✔answer inadequate tissue oxygenation
hypoxia earliest s/s and other s/s -✔✔answer confusion
dyspnea, elevated BP, increased pulse, cyanosis
hypoxia causes -✔✔answer anemia
COPD
pnuemonia
hypoventilation -✔✔answer decreased rate or depth of air movement into the lungs
inadequate ventilation to meet the body's demands
hypoventilation causes -✔✔answer trauma, sedation
hyperventilation -✔✔answer increase in resp rate and depth of respiration
hyperventilation causes -✔✔answer anxiety, infection, fever
inferior and superior vena cava bring -✔✔answer deoxygenated blood to right atrium
aorta takes -✔✔answer oxygenated blood from left ventricle to body
coronary arteries -✔✔answer provide heart muscle itself with blood
S1 -✔✔answer closing of mitral (RA/RV) and tricuspid (LA/LV) valve
S2 -✔✔answer closing of aortic (LV/aorta) and pulmonic (RV/pulmonary artery)