After delivering an aerosol treatment, you notice that approximately 0.5 mL of medication remains in the small volume nebulizer. Which of the following actions do you take?
a. Replace the nebulizer before administering the next treatment
b. Recommend that subsequent doses be delivered via metered dose inhaler (MDI)
c. Take no action and deliver the following dose with the same small volume nebulizer
d. Double the amount of medication administered during the next treatment
Q. 2 Which of the following statements is true concerning the recommended volume of solution when delivering an aerosol treatment via a small volume nebulizer? 1. A volume between 3 mL and 5 mL of solution is recommended.
2. Increasing the volume results in a decrease in the concentration of drug remaining in the dead volume when nebulization ceases.
3. Patient compliance of therapy is directly proportional to its convenience.
4. Increasing the volume of solution results in a net increase in the amount of active drug in the nebulizer.
a. 1 and 2 only
b. 2 and 3 only
c. 1, 2, and 3 only
d. 1, 2, 3, and 4
Q. 3 You are treating a patient who has a confirmed diagnosis of Pneumocystis pneumonia. Which type of delivery device should you choose to administer the dose of pentamidine ordered by the attending physician?
a. Respirgard II
b. MDI
c. Pari LC
d. DPI
Q. 4 An aerosol is best defined as
a. a drug in liquid form.
b. vapor suspended in a carrier gas.
c. a suspension of solid or liquid particles in a carrier gas.
d. an invisible drug particle.
Q. 5 What is the purpose of the end-inspiratory breath hold used in conjunction with aerosol delivery?
a. Prevents the patient from hyperventilating
b. Gives the aerosol more time to reach BTPS conditions
c. Allows better deposition through gravitational settling
d. Reduces inertial impaction
Q. 6 Traditionally, what percentage of a given dose of aerosolized medication reaches the lower respiratory tract, regardless of the type of delivery device being used?
a. 5 to 10
b. 10 to 15
c. 20 to 30
d. 40 to 50
Q. 7 You are a respiratory therapist working in the emergency department; a 67-year-old man with chronic bronchitis presents in acute distress. His vital signs include heart rate (HR) 123 beats/min and respiratory rate (RR) 28 breaths/min.
On auscultation, you note faint expiratory wheezing. Which of the following devices would be the least appropriate by which to deliver an aerosolized drug to this patient?
a. Jet nebulizer
b. Metered dose inhaler (MDI)
c. MDI with spacer
d. Dry powder inhaler (DPI)
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