Gas Exchage

Question 1

Anatomical features of gas exchange

Answer 1

Alveoli
Capillaries
Bronchioles

Question 2

Physiological dead space definition

Answer 2

Areas in the lungs where there is no gas exchange taking place

Question 3

V/Q ratio in healthy lungs

Answer 3

A V/Q mismatch causes minimal distress and cancels itself out

Question 4

FEV1 Definition

Answer 4

Forced expiatorio volume in 1 second

Question 5

FVC Definition

Answer 5

Forced vital capacity

Question 6

What FEV1/FVC ratio signals obstructive disease

Answer 6

Less than 0.7

Question 7

What controls ventilation

Answer 7

CO2 levels

Question 8

Type 1 respiratory failure feature

Answer 8

Low O2
Normal CO2

Question 9

Cause of type 1 respiratory failure

Answer 9

Normal ventilation but not enough O2 in the blood

Question 10

Type 2 respiratory failure

Answer 10

Low O2
low or normal CO2

Question 11

Common conditions of type 1 respiratory failure

Answer 11

Pneumonia
PE
Acute Severe Asthma
COPD

Question 12

Common conditions causing type 2 respiratory failure

Answer 12

Opiate overdose
Severe COPD
acute severe asthma

Question 13

Left ventricular failure causes _____ Oedema

Answer 13

Pulmonary oedema

Question 14

Right ventricular failure causes _______ oedema

Answer 14

Ankle oedema

Question 15

Hypoxemia causes

Answer 15

Hypoventilation
V/Q mismatch

Question 16

Hypoventilation causes

Answer 16

Not enough O2 for gas exchange

Question 17

Causes of hypoxia

Answer 17

Opiate overdose
Asthma
COPD

Question 18

V/Q mismatch definition

Answer 18

Not enough O2 entering lungs

Question 19

V/Q mismatch causes

Answer 19

Narrow airways
chest infections
fluid in lungs

Question 20

Hypoventilation causes an increase in _____ in the _______

Answer 20

CO2
Alveoli