Path: Pulmonary Infection Flashcards Preview

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Flashcards in Path: Pulmonary Infection Deck (25):
1

What are the two patterns of consolidation and infection with bacterial pneumonia?

1. Lobar
2. Lobular

2

What are the 4 stages of the inflammatory response with lobar pneumonia?

1. Congestion
2. Red Hepatization
3. Gray Hepatization
4. Resolution

3

Most common cause of community acquired pneumonia (CAP).

Strep pneumo

4

Most common cause of acute exacerbation of COPD.

H. flu

5

Second most common cause of acute exacerbation of COPD.

Moraxella catarrhalis

6

Common cause of bacterial pneumonia in IV drug users.

Staph aureus

7

Most common cause of pneumonia in alcoholics.

Klebsiella

8

Most common cause of pneumonia in Cystic Fibrosis patients

Pseudomonas a.

9

Most common cause of atypical pneumonia in college-age students and a test to confirm the Dx.

Mycoplasma p.

-Cold Aglutinin test

10

Cause of severe acute respiratory syndrome.

SARS
-Coronavirus

11

Major causes of Hospital Acquired Pneumonia (HAP).

Gram (-) rods
Staph aureus

12

Who normally develops aspiration pneumonia?

Very debilitated patients
-ex. stroke patients

13

How can you differentiate a lung abscess from a tumor on CT or CXR?

Abscesses will have an air-fluid level

14

Type of pneumonia where most lung abscesses form.

Aspiration Pneumonia
-caused by gram (-) rods and S. aureus

15

Only way to get rid of a lung abscess.

Surgery

16

What type of pneumonia is found in immunocompetent patients?

Chronic Pneumonia

17

Most common causes of chronic pneumonia and type of inflammation that occurs.

Bacteria and Fungi
-granulomatous inflammation

18

Microbe that causes pneumonia found in bird or bat feces.

Histoplasma capsulatum

19

Where does Histoplasma reside within the body?

Intracelluar
-inside host macrophages

20

How do Histoplasma granulomas appear on microscopy?

Concentric Calcifications
"Tree Bark" appearance

21

Broad-based-budding yeast.
Also something about boobs?

Blastomyces dermatitidis

22

How do Blastomyces granulomas appear on microscopy.

Caseating granulomas
-just like TB

23

Spherules on microscopy.

Coccidiodes immitis
-they will be located inside macrophages or giant cells

24

Most common cause of pneumonia in IC patients when T cell counts are below 50cells/uL

CMV
MAC (Mycobacterium avium complex)

25

Most common cause of pneumonia in IC patients when T cell counts are below 200cells/uL

Pneumocystis jiroveci