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UCLA EMT Airway Unit Questions with Answers (100%
Correct Answers)
Ventilation Answer: The physical act of moving air into and out of the lungs
Oxygenation Answer: The process of loading oxygen molecules onto
hemoglobin molecules in the bloodstrean.
Respiration Answer: the actual exchange of oxygen and carbon dioxide in the
alveoli as well as the tissues of the body
tidal volume Answer: The amount of air (in mL) that is moved in or out of the
lungs during one breath.
Residual Volume (RV) Answer: The air that remains in the lungs after maximal
expiration.
Alveolar ventilation (VA) Answer: The volume of air that reaches the alveoli;
calculated by subtracting the amount of dead space air from tidal volume.
Minute Volume Answer: The Volume of air moved through the lungs in 1 min.
Calculate by multiplying TV and RR
Alveolar Minute Volume Answer: The Volume of air moved through the lungs
in 1 min minus the dead apace.
Vital Capacity (VC) Answer: The amount of air that can be forcibly expelled
from the lungs after breathing in as deeply as possible.
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Dead space Answer: The portion of the tidal volume that does not reach the
alveoli and thus does not participate in gas exchange.
Hypoxia Answer: Low oxygen saturation of the body, not enough oxygen in
the blood
Dyspnea Answer: difficult breathing,labored breathing, shortness of breath.
Surfactant Answer: A liquid protein substance that coats the alveoli in the
lungs, decreases alveolar surface tension, and keeps the alveoli expanded; a low
level in a premature infant contributes to respiratory distress syndrome.
aerobic respiration Answer: Respiration that requires oxygen
anaerobic respiration Answer: Respiration in the absence of oxygen. This
produces lactic acid.
Diffusion Answer: the process by which molecules move from an area of higher
concentration to an area of lower concentration
hypercarbia Answer: Increased carbon dioxide level in the bloodstream.
tension pneumothorax Answer: An accumulation of air or Gas in the pleural
space that progressively increases pressure in the chest that interferes with
cardiac function with potentially fatal results.
pulmonary embolism Answer: A blood clot that breaks off from a large vein
and travels to the blood vessels of the lung, causing obstruction of blood flow.
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hemothorax Answer: blood in the pleural cavity
open pneumothorax (sucking chest wound) Answer: An open or penetrating
chest wall wound through which air passes during inspiration and expiration,
creating a sucking sound.
Hemopneumothorax Answer: The accumulation of blood and air in the pleural
space of the chest.
hypovolemic shock Answer: A condition in which low blood volume, due to
massive internal or external bleeding or extensive loss of body water, results in
inadequate perfusion.
All of the Following are INTRINSIC conditions that can cause significant
restrictions to the ability to maintain am open Airway, EXCEPT;
A) Tongue obstruction
B) allergic reaction
C) broken jaw
D) infections Answer: C) Brocken Jaw
How would you Define Adequate Breathing? Answer: Normal Rate (12-20
Breaths/min Adult),
regular pattern of inhalation and exhalation,
© 2025 All rights reserved
UCLA EMT Airway Unit Questions with Answers (100%
Correct Answers)
Ventilation Answer: The physical act of moving air into and out of the lungs
Oxygenation Answer: The process of loading oxygen molecules onto
hemoglobin molecules in the bloodstrean.
Respiration Answer: the actual exchange of oxygen and carbon dioxide in the
alveoli as well as the tissues of the body
tidal volume Answer: The amount of air (in mL) that is moved in or out of the
lungs during one breath.
Residual Volume (RV) Answer: The air that remains in the lungs after maximal
expiration.
Alveolar ventilation (VA) Answer: The volume of air that reaches the alveoli;
calculated by subtracting the amount of dead space air from tidal volume.
Minute Volume Answer: The Volume of air moved through the lungs in 1 min.
Calculate by multiplying TV and RR
Alveolar Minute Volume Answer: The Volume of air moved through the lungs
in 1 min minus the dead apace.
Vital Capacity (VC) Answer: The amount of air that can be forcibly expelled
from the lungs after breathing in as deeply as possible.
© 2025 All rights reserved
,2
Dead space Answer: The portion of the tidal volume that does not reach the
alveoli and thus does not participate in gas exchange.
Hypoxia Answer: Low oxygen saturation of the body, not enough oxygen in
the blood
Dyspnea Answer: difficult breathing,labored breathing, shortness of breath.
Surfactant Answer: A liquid protein substance that coats the alveoli in the
lungs, decreases alveolar surface tension, and keeps the alveoli expanded; a low
level in a premature infant contributes to respiratory distress syndrome.
aerobic respiration Answer: Respiration that requires oxygen
anaerobic respiration Answer: Respiration in the absence of oxygen. This
produces lactic acid.
Diffusion Answer: the process by which molecules move from an area of higher
concentration to an area of lower concentration
hypercarbia Answer: Increased carbon dioxide level in the bloodstream.
tension pneumothorax Answer: An accumulation of air or Gas in the pleural
space that progressively increases pressure in the chest that interferes with
cardiac function with potentially fatal results.
pulmonary embolism Answer: A blood clot that breaks off from a large vein
and travels to the blood vessels of the lung, causing obstruction of blood flow.
© 2025 All rights reserved
, 3
hemothorax Answer: blood in the pleural cavity
open pneumothorax (sucking chest wound) Answer: An open or penetrating
chest wall wound through which air passes during inspiration and expiration,
creating a sucking sound.
Hemopneumothorax Answer: The accumulation of blood and air in the pleural
space of the chest.
hypovolemic shock Answer: A condition in which low blood volume, due to
massive internal or external bleeding or extensive loss of body water, results in
inadequate perfusion.
All of the Following are INTRINSIC conditions that can cause significant
restrictions to the ability to maintain am open Airway, EXCEPT;
A) Tongue obstruction
B) allergic reaction
C) broken jaw
D) infections Answer: C) Brocken Jaw
How would you Define Adequate Breathing? Answer: Normal Rate (12-20
Breaths/min Adult),
regular pattern of inhalation and exhalation,
© 2025 All rights reserved
