1|Page
NSG 300 Exam 3 Questions with 100% Verified Answers
UPDATED 2026!!!
3 steps in the process of oxygenation: - ANSWER ventilation,
perfusion, and diffusion
Is inspiration an active or passive process? - ANSWER active;
stimulated by chemical receptors in the aorta
Is expiration an active or passive process? - ANSWER passive;
depends on the elastic recoil properties of the lungs, requiring
little or no muscle work
TRUE or FALSE: clubbing will not occur in patients with asthma.
- ANSWER FALSE
What is lung capacity based off of? - ANSWER Age
Gender
Height
,2|Page
Where does pulmonary circulation begin? - ANSWER pulmonary
artery
which receives poorly oxygenated blood from the right ventricle
What affects the rate of gas diffusion in the lungs? - ANSWER
the thickness of the alveolar capillary membrane
What issues cause a thicker alveolar membrane? - ANSWER -
pulmonary edema
-pulmonary infiltrates
-pulmonary effusion
What chronic diseases alter the amount of alveolar capillary
membrane surface? - ANSWER -emphysema
-pneumothorax
-lobectomy
TRUE or FALSE: you can never give too much O2 to a patient
with COPD - ANSWER FALSE
, 3|Page
if you do so then they will not be able to properly expel CO2
What three things influence the capacity of the blood to carry
O2? - ANSWER 1. the amount of dissolved O2 in the plasma
2. the amount of hemoglobin
3. the ability of the hemoglobin to bind with O2
What does the CNS regulate in terms of respiration? - ANSWER
rate, depth, and rhythm
What does the cerebral cortex regulate in terms of respiration?
- ANSWER voluntary control of respiration
What does chemical regulation do in terms of respirations? -
ANSWER maintains appropriate rate and depth based on
changes in CO2, O2, and hydrogen ion concentrations in the
blood (pH).
Where are chemoreceptors found in the body? - ANSWER aortic
and carotid bodies
NSG 300 Exam 3 Questions with 100% Verified Answers
UPDATED 2026!!!
3 steps in the process of oxygenation: - ANSWER ventilation,
perfusion, and diffusion
Is inspiration an active or passive process? - ANSWER active;
stimulated by chemical receptors in the aorta
Is expiration an active or passive process? - ANSWER passive;
depends on the elastic recoil properties of the lungs, requiring
little or no muscle work
TRUE or FALSE: clubbing will not occur in patients with asthma.
- ANSWER FALSE
What is lung capacity based off of? - ANSWER Age
Gender
Height
,2|Page
Where does pulmonary circulation begin? - ANSWER pulmonary
artery
which receives poorly oxygenated blood from the right ventricle
What affects the rate of gas diffusion in the lungs? - ANSWER
the thickness of the alveolar capillary membrane
What issues cause a thicker alveolar membrane? - ANSWER -
pulmonary edema
-pulmonary infiltrates
-pulmonary effusion
What chronic diseases alter the amount of alveolar capillary
membrane surface? - ANSWER -emphysema
-pneumothorax
-lobectomy
TRUE or FALSE: you can never give too much O2 to a patient
with COPD - ANSWER FALSE
, 3|Page
if you do so then they will not be able to properly expel CO2
What three things influence the capacity of the blood to carry
O2? - ANSWER 1. the amount of dissolved O2 in the plasma
2. the amount of hemoglobin
3. the ability of the hemoglobin to bind with O2
What does the CNS regulate in terms of respiration? - ANSWER
rate, depth, and rhythm
What does the cerebral cortex regulate in terms of respiration?
- ANSWER voluntary control of respiration
What does chemical regulation do in terms of respirations? -
ANSWER maintains appropriate rate and depth based on
changes in CO2, O2, and hydrogen ion concentrations in the
blood (pH).
Where are chemoreceptors found in the body? - ANSWER aortic
and carotid bodies
