Author Question: You assemble a metered-dose inhaler (MDI), and when the patient squeezes it the MDI doesn't ... (Read 47 times)

arivle123 · **on:** Jul 16, 2018

You assemble a metered-dose inhaler (MDI), and when the patient squeezes it the MDI doesn't activate. What could cause this?
I. It is empty.
II. It is assembled incorrectly.
III. The patient isn't squeezing hard enough.
IV. The valve has malfunctioned.
A) I
B) I and II
C) I, II, and III
D) I, II, III, and IV

Question 2

Which substance works to lower surface tension on the alveolar wall?
A) blood
B) mucus
C) serum
D) surfactant