Clinical Diffusion Capacity Flashcards Preview

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Flashcards in Clinical Diffusion Capacity Deck (12):
1

in normal. O2 is largely ___ limited

perfusion limited

 

2

average DLco of resting adult in singel breath method

25ml of CO/min/mmHg

3

impact of exercise on DLco

increased x2-3

4

impact of muscular dystrophy

single breath DLco decreased

low vital capacity

5

clinical significane of DLco/VA is high/low

low

6

diffusion capacity in asthma

why?

increased

 

increased negative intrathoracic pressure

increased thoracic blood volume

7

impact on DLco of any condition that increases lung blood flow

increased

8

silicosis impacts surface area/distance

distance

9

normal spirometry, decreased diffusion = (3)

Pul HTN

emphysema AND ILD (obstruction and constriction)

anemia

10

hallmark lesion of pul htn

pelxiform lesion, thick, inflammed

11

impact of valsalva manuever

decreased DLco due to decreased thoracic lung volume

12

impact of pt not taking 100% breath during breath hold

low DLco