Flight Paramedic || QUESTIONS WITH COMPLETE
SOLUTIONS!!
What is diffusion? correct answers Movement of molecules from high to low concentration
Where does gas exchange occur? correct answers alveolar-capillary membrane
4 Causes of poor diffusion at the alveolar-capillary membrane correct answers 1. Damage
(Atelectasis)
2. Covered with fluid(Pneumonia/ARDS)
3. Insufficient inflation(hypoventilation/poor inspiratory maneuvers)
4. overstretched(High Pplat)
Why do we need to ventilate properly? correct answers To regulate and maintain appropriate
amounts of CO2
Co2 regulation second by second correct answers Carbonic acid buffer system
What mechanisms produce CO2? correct answers Aerobic and anaerobic metabolism
What mechanisms regulate CO2? correct answers 1. Being in an aerobic state
2. Blood flow to lungs
3. Proper diffusion
4. appropriate minute ventilation
PaCO2 for hypoventilation correct answers Above 45 mmHg
PaCO2 for hyperventilation correct answers Less than 35 mmHg
For every change in CO2 by 10 mmHg, you will have a corresponding change in pH by
_____ in the opposite direction correct answers 0.08
Will the PaCO2 or ETCO2 be higher? and by how much? correct answers PaCO2 will always
be higher by 3-5 mmHg.
How much faster does CO2 diffuse than O2? correct answers CO2 diffuses at a rate 20x
faster than O2
PAO2 correct answers Partial Pressure of oxygen in the alveoli
PaO2 correct answers partial pressure of oxygen in the arterial system
SaO2 correct answers Amount of oxygen saturated on hemoglobin
Oxygen/hemoglobin disassociation curve- Right shift correct answers Less Hb-O2 affinity.
Give oxygen to the tissue. Everything raises(H+, CO2, PaO2, temp, 2,3 BPG).
Ex. athletes that train at high altitudes will have a lower SpO2 and higher than normal PaO2.
SOLUTIONS!!
What is diffusion? correct answers Movement of molecules from high to low concentration
Where does gas exchange occur? correct answers alveolar-capillary membrane
4 Causes of poor diffusion at the alveolar-capillary membrane correct answers 1. Damage
(Atelectasis)
2. Covered with fluid(Pneumonia/ARDS)
3. Insufficient inflation(hypoventilation/poor inspiratory maneuvers)
4. overstretched(High Pplat)
Why do we need to ventilate properly? correct answers To regulate and maintain appropriate
amounts of CO2
Co2 regulation second by second correct answers Carbonic acid buffer system
What mechanisms produce CO2? correct answers Aerobic and anaerobic metabolism
What mechanisms regulate CO2? correct answers 1. Being in an aerobic state
2. Blood flow to lungs
3. Proper diffusion
4. appropriate minute ventilation
PaCO2 for hypoventilation correct answers Above 45 mmHg
PaCO2 for hyperventilation correct answers Less than 35 mmHg
For every change in CO2 by 10 mmHg, you will have a corresponding change in pH by
_____ in the opposite direction correct answers 0.08
Will the PaCO2 or ETCO2 be higher? and by how much? correct answers PaCO2 will always
be higher by 3-5 mmHg.
How much faster does CO2 diffuse than O2? correct answers CO2 diffuses at a rate 20x
faster than O2
PAO2 correct answers Partial Pressure of oxygen in the alveoli
PaO2 correct answers partial pressure of oxygen in the arterial system
SaO2 correct answers Amount of oxygen saturated on hemoglobin
Oxygen/hemoglobin disassociation curve- Right shift correct answers Less Hb-O2 affinity.
Give oxygen to the tissue. Everything raises(H+, CO2, PaO2, temp, 2,3 BPG).
Ex. athletes that train at high altitudes will have a lower SpO2 and higher than normal PaO2.
