Pathology Of Pulmonary Infection Flashcards

1
Q

What causes lung infections

A

Microorganism Pathogenicity :
-Primary
-Facultative
-Opportunistic

Capacity to Resist Infection :
-State of Host Defence Mechanisms
-Age of Patient

Population at Risk

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2
Q

What is the cause of acute epiglottitus

A

H’influenza
Group A beta-haemolytic strep

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3
Q

What are the repiratory tract defense mechanisms

A

Macrophage-mucociliary escalator system

ALVEOLAR MACROPHAGES

MUCOCILIARY ESCALATOR

COUGH REFLEX

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4
Q

How does the lower respiratory tract stay sterile

A
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5
Q

What is the effect of infection on epithelium

A
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6
Q

What are the anatomical classifications of pneumonia

A

Bronchopneumonia
Segmental
Lobar

Hypostatic
Aspiration
Obstructive, retention, endogenous lipid

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7
Q

What does bronchopneumonia look like

A

Centre acinar region

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8
Q

What does bronchopneumonia look like on xray

A

Bilateral patchy opacification

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9
Q

What does lobar pneumonia look like

A

Completely solid
Lacking in air

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10
Q

What does an xray of lobar pneumonia look like

A
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11
Q

What complications can Pneumonia cause

A

Pleurisy, pleural effusion, Empyema
Mass legion
COP
Bronchioloitis
Lung abscess
Bronchiactasis
Fatal

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12
Q

What does pleurisy look like

A
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13
Q

What does chronic empyema look like

A
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14
Q

What does cryptogenic organising pneumonia look like

A
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15
Q

What can cause lung abscess

A

Obstructed bronchus
Aspiration
Some organisms
Metastatic in Pyaemia
Necrotic lung 2nd infection

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16
Q

What is bronchiactasis due to

A

Dilation of bronchi due to :
Infective episode
Recurrent infections
Proximal bronhcial obstruction
Lung parenchymal Destruction

17
Q

What does bronchiactasis look like

A
18
Q

What are some complications of bronchiactasis

A