Inappropriately high ventilation for the metabolic demand
Inappropriately low ventilation for metabolic demand
Question 2
Question
What is Hypernoea?
Answer
Normal spontaneous breathing
Increased depth of breathing
Inappropriately high ventilation for the metabolic demand
Inappropriately low ventilation for metabolic demand
Question 3
Question
What is Hyperventilation?
Answer
Inappropriately low ventilation for metabolic demand
Inappropriately high ventilation for the metabolic demand
Increased frequency of breathing
Subjective sensation of laboured breathing
Question 4
Question
What is hypoventilation
Answer
Subjective sensation of laboured breathing
Inappropriately low ventilation for metabolic demand
Increased frequency of breathing
Temporary cessation of breathing
Question 5
Question
What is Tachypnoea?
Answer
Temporary cessation of breathing
Subjective sensation of laboured breathing
Increased frequency of breathing
Question 6
Question
What is Dyspnoea?
Answer
Increased frequency of breathing
Subjective sensation of laboured breathing
Temporary cessation of breathing
Question 7
Question
What is Apnoea?
Answer
Temporary cessation of breathing
Subjective sensation of laboured breathing
Increased frequency of breathing
Question 8
Question
Diffusion of Gases is influenced by
Answer
Laws of diffusion
Measurement of diffusing capacity
O2 uptake along the pulmonary capillary
Diffusion and perfusion limitations
Question 9
Question
Diffusion through tissue's is described by [blank_start]Fick[blank_end]'s Law
Answer
Fick
Question 10
Question
For diffusion through a tissue sheet, the amount of a gas transferred is proportional to [blank_start]Area available for diffusion (A)[blank_end], [blank_start]Diffusion constant (D)[blank_end], [blank_start]Difference in partial pressure (P1‐P2)[blank_end] and inversely proportional to [blank_start]thickness of the tissue (T)[blank_end]
Answer
Diffusion constant (D)
Difference in partial pressure (P1-P2)
Difference in partial pressure (P1‐P2)
Diffusion constant (D)
Area available for diffusion (A)
Area available for diffusion (A)
Diffusion constant (D)
Difference in partial pressure (P1-P2)
thickness of the tissue (T)
Area available for diffusion (A)
Diffusion constant (D)
Difference in partial pressure (P1‐P2)
thickness of the tissue (T)
thickness of the tissue (T)
thickness of the tissue (T)
Question 11
Question
Diffusion constant is [blank_start]proportional[blank_end] to the gas solubility (Sol) and [blank_start]inversely proportional[blank_end] to square root of its molecular weight.
Answer
proportional
inversely proportional
Question 12
Question
Which diffuses into the lungs quicker? CO2 or O2?
Answer
CO2
O2
Question 13
Question
Which of the following bind to Haemoglobin?
Answer
Co
N2O
O2
CO2
Question 14
Question
Transfer of CO is [blank_start]diffusion limited[blank_end]. Amount taken up depends on how
much CO is available
Answer
diffusion limited
Question 15
Question
N2O transfer is [blank_start]perfusion limited[blank_end]. Amount taken up depends on how
much blood can flow through
Answer
perfusion limited
Question 16
Question
At rest a RBC spends how much time in an alveolar capillary?
Answer
0.75s
0.8s
0.6s
0.65s
0.7s
Question 17
Question
During exercise how low can the time a RBC spends in an alveolar capillary drop to?
Answer
0.25s
0.2s
0.15s
0.1s
Question 18
Question
Which of the following are measurements of diffusing capacity?
Answer
Single breath method
Doubly Indirect method
Quick exhale method
24hr monitoring method
Question 19
Question
What is the normal value of diffusing capacity for CO at rest?
Answer
25 mL∙min‐1∙mm Hg‐1
30 mL∙min‐1∙mm Hg‐1
20 mL∙min‐1∙mm Hg‐1
15 mL∙min‐1∙mm Hg‐1
Question 20
Question
What is the ratio of breath alcohol to blood alcohol?
Answer
2,100:1
210:1
2200:1
220:1
Question 21
Question
At rest, the PO2 of the blood virtually reaches that of the alveolar gas after about
1/3 of its time in the capillary so O2 transfer is really only limited by [blank_start]perfusion[blank_end]