What is the average amount of dead volume in a small-volume jet nebulizer after the device runs dry?
a. 0.1 ml
b. 0.5 to 2.2 ml
c. 2.0 to 4.0 ml
d. Less than 0.1 ml
Q. 2 During aerosol drug delivery using a small-volume jet nebulizer (SVN) set at 8 L/min input flow, a patient asks that the head of the bed be lowered to a semi-Fowler's position.
Immediately after doing so, you observe a significant drop in SVN aerosol output, despite there being at least 3 ml of solution left in the reservoir. What would you do to correct this problem?
a. Add 1 to 2 ml more diluent to the nebu-lizer reservoir.
b. Increase the nebulizer input flow to 10 to 12 L/min.
c. Reposition the patient so that the SVN is more upright.
d. Decrease the nebulizer input flow to 3 to 4 L/min.
Q. 3 Which of the following small-volume jet nebulizer design features affect its performance? 1. Position 2. Residual volume 3. Baffles 4. Reservoirs
a. 1, 2, and 3 only
b. 2 and 4 only
c. 3 and 4 only
d. 1, 2, 3, and 4
Q. 4 Which of the following would be correct instructions for a patient being taught proper use of a dry powder inhaler?
1. Place mouthpiece 4 cm from mouth
2. Exhale slowly to FRC
3. Inhale slowly (<30 l> 4. Repeat until dose is used up
a. 2 and 4 only
b. 3 and 4 only
c. 1, 2, and 3 only
d. 1, 2, 3, and 4
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