Author Question: Which of the following are true about a solution that is being aerosolized by an ultrasonic ... (Read 9 times)

savannahhooper · **on:** Jul 16, 2018

Which of the following are true about a solution that is being aerosolized by an ultrasonic nebu-lizer?

1. The solute concentration decreases.
2. The temperature of the solution increases.
3. The solute concentration increases.
4. The temperature of the solution decreases.
a. 1 and 2 only
b. 2 and 3 only
c. 2 and 4 only
d. 3 and 4 only

Question 2

What is the average mean mass aerodynamic diameter (MMAD) generated by the vibrating mesh nebulizers?

a. 1 to 2 m
b. 2 to 3 m
c. 3 to 4 m
d. 5 to 6 m

jackie · **Reply #1 on:** Jul 16, 2018

Answer to Question 1

ANS: B
As the temperature increases, the drug concentration increases, as does the likelihood of unde-sired side effects.

Answer to Question 2

ANS: B
The exit velocity of the aerosol is low, less than 4 m/sec, and the particle size can range between 2 and 3 m MMAD, varying with the exit diameter of the apertures (Figure 39-27).