Chapter 15: Respiratory Infections 2 Flashcards Preview

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Flashcards in Chapter 15: Respiratory Infections 2 Deck (19):
1

Type of PNA that is caused by gram negative, rod-shaped bacteria and spread by inhalation of air droplets containing the bacteria (e.g., in shower heads and air conditioning ducts); it is not spread person to person.

Legionnaires' Disease

2

Type of bacteria that causes Legionnaires disease?

Legionella pneumophila

3

Treatment for Legionnaires' Disease?

Abx

4

What type of environment does Legionella pneumophila thrive in?

Moist locations

5

Type of pneumonia that is highly communicable, is caused by an unusual coronavirus, and can be transmitted from person to person and spreads rapidly.

SARS (Severe Acute Respiratory Syndrome)

6

True or false: SARS is caused by a bacterial infection.

False; SARS is caused by the coronavirus

7

Which PNA spread through many countries in 2002-2003, beginning in China, causing >8000 infections and >700 deaths in 6 months?

SARS (Severe Acute Respiratory Syndrome)

8

What is unique about the SARS virus?

It is not closely related to other coronaviruses and was the first coronavirus to cause severe disease in humans. Also, unlike other coronaviruses (which cause URIs), SARS causes lower respiratory infection

9

What was the probable origin of the SARS virus?

A non-human animal virus that mutated.

10

What serious complication is common (about 20%) in SARS?

ARDS (Acute respiratory distress syndrom)

11

True of false; SARS is usually more serious in children than in adults.

False

12

True or false: There is no effective antiviral drug to treat SARS.

True

13

Which PNA caused by an unusual coronavirus was first identified in the Middle East in 2012 and spread to Korea, continuing through the present.

MERS (Middle Eastern Respiratory Syndrome)

14

How does MERS differ from SARS?

1)Patients with MERS are more likely to have pre-existing illnesses
2) MERS results in more rapid respiratory failure than SARS

15

A small fungal parasite of low
pathogenicity that humans harbor which does not affect
normal persons, but can cause PNA in immunocompromised pts.

Pneumocystis jiroveci

16

Type of PNA that affects mainly immunocompromised pts (e.g., AIDS pts, those on immunosuppressant drugs, premature infants, MS, RA, etc) and is caused by a fungal parasite that injures the cells lining alveoli, resulting in inflammation and exudation of lots of protein-rich material into the alveoli.

Pneumocystis

17

What are the signs/sx of pneumocystis?

Cough, dyspnea, and pulmonary consolidation

18

How is pneumocystix diagnosed?

Chest xray and lung biopsy by bronchoscopy and examination of lung aspirations for pnumocystis jiroveci parasite.

19

How is pneumocystis treated?

Antifungal drug to inhibit growth of organism

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