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Pathology > 9.3 Pulmonary Infections > Flashcards

9.3 Pulmonary Infections Flashcards

bradykinin and prostaglandin E2- pain response Patterns of Chest X-Ray Slide: neutrophils and pink exudate Processes: A. Four Classic Phases of Lobar Pneumonia 1. congestion 2. red hepatization: live-like change due to blood 3. grey hepatization: break down of blood cells 4. resolution= type II pneumocyte regeneration B.

1
Q

pneumonia

A

infection of lung parenchyma

  1. cough reflex
  2. mucociliary escalator
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2
Q

pleuritic chest pain

A

pain that arises with stretch of chest

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3
Q

X-Ray: Lobar Pneumonia

A

entire lower lobe

usually bacterial

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4
Q

X-Ray: bronchopneumonia

A

atypical (viral)

patchy

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5
Q

X-Ray: interstitial pneumonia

A

increased markings

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6
Q

most common of bacterial pneumonia (2)

A
  1. S. pneumoniae (95%)

2. Klebsiella Pneumoniae

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7
Q

klebsiella pneumoniae

A

aspiration of enteric flora in elderly, alcoholics, and diabetics

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8
Q

bronchopneumonia: morphology

A

scattered patchy consolidation centered around bronchioles

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9
Q

bronchopneumonia: cause

A
  1. staph a.
  2. H. flu (COPD)
  3. pseudomonas aer
  4. moraxella catarrhalis
  5. legionella pneumohpila (water source, silver stain)
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10
Q

interstitial pneumonia: morph

A

diffuse interstitial infiltrates

neutrophils in insterstitium, low exudate

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11
Q

interstitial pneumonia: symp

A

mild, flu like symptoms

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12
Q

insterstitial pneumonia: bugs

A
  1. m. pneumo
  2. chlamydia pneumo
  3. RSV (infants)
  4. CMV (immunosuppresive therapy)
  5. Influenza (elderly)
  6. cox burn.
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13
Q

secondary pneumonia

A

bacterial infection imposed on a pre-existing viral infection

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14
Q

aspiration pneumonia: morph

A

right lower lobe abscess

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15
Q

aspiration pneumonia: cause

A

anaerobic bacteria (bacteriodes, fusobacterium, peptococcus)

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16
Q

primary TB

A

focal caseating necrosis in the lower lobe of the lung and hilar lymph nodes

17
Q

Ghon complex

A

TB foci undergoing fibrosis and calcification indicating exposure to primary TB

18
Q

Pott Disease

A

spread of TB to lumbar vertebrae

19
Q

secondary TB

A

reactivation of TB in a GHON complex (near apex of lung)

20
Q

miliary TB

A

mini-regions of TB scattered across the lung

21
Q

caseating granulomas: diff

A

Fungus or TB (acid-fast)

22
Q

epitheliod histiocytes

A

characteristic of granulomas

23
Q

TB: where in the brain

A

base of the brain

24
Q

sterile pyuria

A

pus in the urine, appears sterile when cultured

Pathology (9 decks)

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