Which of the following are advantages of a Stead-Wells water seal spirometer compared with a chain-compensated water seal spirometer?
I. higher frequency response
II. can measure subtle flow rates
III. less affected by inertia
IV. more accurate volume measurement
A) I
B) I and II
C) I, II, and III
D) I, II, III, and IV
Question 2
A quick method of diagnosing a pneumothorax is
A) CT scan
B) magnetic resonance imaging (MRI)
C) transillumination
D) x-ray
