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Flashcards in Resp. Failure and ARDS Deck (17):
1

Zone 1 has no blood flow because _______, collapsing pulmonary capillaries and obstructing blood flow.

alveolar pressure exceeds arteriolar pressure

1

The most common causes of _____ are sepsis, pancreatitis, trauma, aspiration, and transfusion.

ARDS

2

In lung zone 1, the P___>P____>P____.

A>a>v

3

What is FIO2?

the fraction of inspired oxygen between 21% (room air) and 100% (pure oxygen)

3

The two determinants of oxygenation are _____ and ____.

FIO2 and PEEP

4

Zone 2 perfuses in an _____, _____ fashion, at times in the cardiac and respiratory cycle when the arterial and venous pressures exceed alveolar pressures.

intermittent, pulsatile

5

Zone 3 is ideally perfused lung, where _____, and blood flow remains consistent.

vascular pressures exceed alveolar pressures

6

______ is marked by intense alveolar inflammation with increased pulmonary capillary permeability.

ARDS

7

In lung zone 3, the P___>P____>P____.

a>v>A

8

The most common causes of ARDS are?

  • sepsis
  • pancreatitis
  • trauma
  • aspiration
  • transfusion

9

What are the only 2 treatments for ARDS that are known to improve outcomes?

  • low tidal volume ventilation
  • prone positioning

10

There are two basic types of respiratory failure: ____ and ____.

hypoxemic and hypercapneic

12

In lung zone 2, the P___>P____>P____.

a>A>v

13

The two determinants of ventilation are _____ and ____.

respiratory rate and tidal volume

14

What are the 4 parameters of mechanical ventilation we need to know?

  1. FIO2
  2. PEEP
  3. Respiratory rate
  4. Tidal volume

16

What is PEEP?

Positive end-expiratory pressure

17

ARDS is marked by intense _____ with increased _____.

alveolar inflammation; pulmonary capillary permeability