Pulmonary Flashcards
(9 cards)
1
Q
Across which type of pnemocyte does gas exchange occur?
A
type 1 pneumocyte (accounts for > 90% of alveolar surface area)
2
Q
Which type of pneumocyte is involved with surfactant production?
A
type 2 pneumocyte
3
Q
What Sp02 and Pa02 levels are seen in methemoglobinemia?
A
Sp02 85%, Pa02 105
4
Q
What is treatment for methemoglobinemia?
A
methylene blue or ascorbic acid (for patients w/ G6PD deficiency)
5
Q
What are some causes of increase V/Q ratio?
A
6
Q
What are some causes of decreased V/Q ratio?
A
7
Q
Which conditions increase peak inspiratory pressures without an increase in plateau pressures?
A
8
Q
Which factors are associated with a decreased DLCO?
A
- pulmonary embolism
- emphysema
- interstitial lung disease
- anemia
- heart failure
9
Q
Which factors are associated with an increased DLCO?
A
- high altitude
- lying supine
- exercise
- asthma
- left to right cardiac shunt
- polycythemia
- pulmonary hemorrhage
- obesity
