Exam 3 Pulmonary

Question 1

With what disease do you classically see honeycombing on CXR

Answer 1

interstital lung disease –> idiopathic pulmonary fibrosis

Question 2

Where the is CRX opacity in interstitial disease?

Answer 2

its a reticular pattern

Question 3

what is atelectasis assocaited with?

Answer 3

volume loss

Question 4

What is a positive response in a bronchodilator test?

Answer 4

positive if there is a change of atleast 12% and 200ccs

Question 5

What is abnormal DLCO?

a. <90% predicted

Answer 5

D

Question 6

LOW DLCO caused by less area is caused be all of the following except:

a. emphysema
b. PE
c. anemia
d. CHF
e. pulmonary HTN

Answer 6

D. CHF

CHF is due to increased wall thickness

Question 7

When would you test for methacholine?

Answer 7

if there is unexplained respiratory symptoms with NORMAL PFTs

Question 8

T/F DLCO in asthmatics is reduced

Answer 8

FALSE. asthmatics dont have destruction of their air spaces like COPD patients do, so their DLCO is normal

Question 9

High V/Q is CLASSICALLY indicative of?

Answer 9

PE: pulmonary embolism

Question 10

Normal A-a gradient?

Answer 10

Less than 12

Question 11

What is the A-a gradient defined as?

Answer 11

A calculated defect in oxygen transfer from inspired to blood