Respiratory Step 1

Question 1

a decline of at least 10% in FEV1 between pre- and post-exercise

Answer 1

exercise-induced bronchoconstriction

Question 2

airway level contributes the least to airway resistance

Answer 2

Terminal Bronchioles
(many of them are arranged in parallel, resulting in low total resistance at this level of the respiratory tree.)

Question 3

highest airway resistance is found in the lung

Answer 3

medium-sized bronchi

Question 4

Airway resistance is inversely proportional to

Answer 4

r4, where r is the radius of the airway

Question 5

A sudden new or worsening asthma,recurrent sinusitis,foot/wrist drop with epistaxis is associated with

Answer 5

Eosinophilic Granulomatosis With Polyangitis (Churg-Strauss Syndrome)

Question 6

Eosinophilic Granulomatosis With Polyangitis (Churg-Strauss Syndrome)
Histology

Answer 6

**Granulomatous, necrotizing inflammation within small-sized vessels

Question 7

LAB results in Churg-Strauss Syndrome

Answer 7

*Eosinophilia + P-ANCA

Question 8

Churg-Strauss Syndrome

Tx

Answer 8

1) glucocorticoids
2) Azathioprine
3) Cyclophosphamide