CABS: ILD

Question 1

Zone 1 of lungs -

Answer 1

alveolar pressure is greater than capillary thus collapsing it

Question 2

Zone 2 of lungs -

Answer 2

above the LA the alveolar pressure > venous but not arterial

Question 3

Zone 3 of lungs -

Answer 3

base, low alveolar pressure, higher vasculature pressure, alveolar more compliant

Question 4

ILD leads to pulmonary fibrosis where

Answer 4

in the parenchyma

Question 5

Airspace vs ILD

Answer 5

airspace - alveolar disease
ILD - infiltrative disease leading to fibrosis of the lungs

Question 6

ILD is a ______ disorder

Answer 6

progressive

Question 7

Idiopathic Pulmonary fibrosis causes

Answer 7

start of process not clear
likely associated with:
smoking, GERD, pollution

Question 8

IPF is loss of

Answer 8

type 1 epithelial cells (structure)

Question 9

Type 2 overgrowth leads to

Answer 9

not allowing for repair/ regrowth of the damaged epithelium

Question 10

IPF on CXR, HRCT will see

Answer 10

basilar opacities, honeycombing

Question 11

IPF may require ____ for dx

Answer 11

bx

Question 12

pneumoconiosis is m/c associated with what causative agents

Answer 12

silica, asbestos, coal

Question 13

Presentation of pneumoconiosis

Answer 13

cough
dyspnea
diminished lung volumes
progress to hypoxemia

Question 14

Coal workers pneumoconiosis m/c occurs in pts

Answer 14

who work >20 yrs in coal mine
specifically high carbon coal - may contain silia

Question 15

Black masses m/c in the (what fields)

Answer 15

upper posterior lung fields

Question 16

Presentation of pneumoconiosis

Answer 16

melanoptysis**
cough
progressive dyspnea
pulm HTN
RV failure

Question 17

Silicosis associated with what causative agents

Answer 17

inhalation of crystalline silica

Question 18

Silicosis has deposition of silica dust where

Answer 18

within the terminal bronchioles and alveoli

Question 19

direct toxic reaction to the silica =

Answer 19

breaks down type 2 cells

Question 20

Asbestosis is

Answer 20

silicate which was used industrially for construction

Question 21

Asbestos is found in

Answer 21

old homes ships and mines

Question 22

Asbestosis forms _____ years after exposure

Answer 22

15 years

Question 23

Asbestos causes

Answer 23

direct lung injury d/t fiber microtrauma

Question 24

Sarcoidosis is a ________ disease

Answer 24

granulomatous

Question 25

On exam in sarcoidosis shows

Answer 25

non-caseating granulomas
may appear similar to TB or fungal infections

Question 26

Sarcoidosis causes destruction of the

Answer 26

capillary perfusion membrane, formation of granulomas, inflammation

Question 27

Hypersensitivity Pneumonitis is when

Answer 27

parenchymal inflammation secondary to immune reaction to inhaled noxious stimuli

Question 28

m/c subtype of Hypersensitivity Pneumonitis

Answer 28

farmer’s lung

Question 29

Clubbing is a result of

Answer 29

chronic hypoxemia
increased fingertip mass with increased curvature

Question 30

Hypoxemia =

Answer 30

decreased O2 in arterial blood

Question 31

Hypoxia =

Answer 31

decreased O2 to tissues