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Chapter 3 Administration of Aerosolized Agents

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Presentation on theme: "Chapter 3 Administration of Aerosolized Agents"— Presentation transcript:

1 Chapter 3 Administration of Aerosolized Agents
RES 219 Pharmacology

2 Aerosolized medications
Advantages of aerosols Disadvantages of aerosols

3 Definitions: Aerosol Stability Penetration Deposition

4 Aerosol Particle Size 10-15 microns 5-10 microns 1-5 microns
Factors determining particle size Breathing Pattern Inertial impaction

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8 Aerosol Delivery Devices
Ultrasonic nebulizer Small particle aerosol generator Small volume nebulizer Filling volume/treatment time Effect of flow rate Gas sources

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12 Relationship of vol. & flow rate to neb time

13 Effect of Flow Rate on particle size

14 Nebulizer Designs Constant output Breath activated
Vibrating mesh technology Breath enhanced Adaptive aerosol delivery

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20 Metered-Dose Inhaler Propellants used in MDI Advantages of MDI
Disadvantages of MDI Proper use of MDI

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23 CFC vs. HFA

24 Reservoir Devices Spacer Holding chamber Advantages of reservoirs

25 Reservoir Device

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27 Other Inhalers Breath-actuated inhaler Dry-powder inhaler
Soft mist inhaler

28 Breath-actuated Inhaler

29 DPI

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31 Soft Mist Inhaler

32 What method of delivery is best?
MDI vs SVN vs DPI vs SMI??

33 Aerosol loss for 4 drug delivery systems

34 Comparison of lung deposition of older vs new aerosol devices

35 Lung deposition & clinical response: Comparison of 3 bronchodilator delivery methods

36 Infection Control Patient education on cleaning of Jet nebulizer MDI
Reservoir devices

37 Administration of aerosol via ET tube
MDI vs SVN Factors the affect aerosol deposition in mechanical vent Techniques for MDI & SVN via vent


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