aerosol therapy and nebulizers ret 2274 respiratory therapy theory lab i module 6.1

Aerosol Therapy and Nebulizers

RET 2274

Respiratory Therapy Theory Lab I

Module 6.1


Aerosols Particulate matter suspended in a gas

Particulate matter can be either a liquid or a solidExamples: Liquid - Albuterol (liquid medication) Solid - Cromolyn sodium (powdered medication)


Aerosols Liquids are aerosolized in clinical practice

Bland aerosol therapy (cool or heated) Agents used

Sterile water Saline (hypotonic, isotonic, hypertonic)

Use to treat Airway edema Humidification of bypassed upper airway

e.g. artificial airway Sputum induction and mobilization


Aerosols Liquids are aerosolized in clinical practice

Aerosolized medication Directly to the pulmonary system for treatment of a

pathology Bronchospasm Mucosal edema Infection


Aerosol Therapy Equipment Nebulizer – a device that produces particulate

matter that is delivered into a gas Large-Volume Nebulizer Large-Volume Ultrasonic Nebulizer Small-Volume Nebulizer Small-Volume Ultrasonic Nebulizer Bulb-Type Nebulizer Respigard II Small-volume Nebulizer Breath-Actuated Nebulizer


Aerosol Therapy Equipment Pneumatic Nebulizer

1. High pressure nozzle

2. Maximum shear force

3. Capillary tube

4. Baffle

5. Area of vorticity

6. Reservoir


Aerosol Therapy Equipment Large-Volume Nebulizer

Pneumatically powered Variable air entrainment port

Increase flow rate Alter FiO2



Single-patient use



Heaters


Aerosol Therapy Equipment Large-Volume Ultrasonic Nebulizer

1. Radiofrequency generator

2. Shielded cable

3. Piezoelectric crystal transducer

4. Water-filled couplant reservoir

5. Solution chamber

6. Chamber inlet

7. Chamber outlet


Aerosol Therapy Equipment Small-Volume Nebulizer

Pneumatically powered Medication administration

Bronchodilators Antiinflammatory agents Antibiotics

10 ml medication reservoir


Aerosol Therapy Equipment Small-Volume Nebulizer

Single-patient use


Aerosol Therapy Equipment Respirgard II Small-Volume Nebulizer

Administration of Penamidine Tx for Pneumocystis carinii pneumonia (PCP)

Two one-way valves Wye Expiratory filter


Aerosol Therapy Equipment Breath-Actuated Nebulizers

Deliver aerosol only during inspiration Eliminates waste during exhalation Increases delivered dose

AeroEclipse


AeroEclipse


Aerosol Therapy Equipment Bulb-Type Handheld Nebulizer

Medication administration Powered by squeezing the bulb


Aerosol Therapy Equipment Small-Volume Ultrasonic Nebulizer

Medication administration Home use


Aerosol Therapy Equipment Small-Volume Ultrasonic Nebulizer

Medication administration Mechanical ventilators


Aerosol Therapy Equipment Small-Volume Nebulizer (continuous nebulization)

Intravenous drip system for Used to manage severe bronchospasm when traditional

dosing strategies are ineffective


Aerosol Therapy Equipment Large-Volume Nebulizer (Continuous

Nebulization) Medication administration Used to manage severe bronchospasm

when traditional dosing strategies are ineffective

240 ml medication reservoir

HOPE


Aerosol Therapy Equipment Small-Particle Aerosol Generator (SPAG)

Special-purpose large-volume nebulizer Administration of Virazole (ribavirin)

Tx for respiratory syncytial virus (RSV) Used with masks, hoods, tents, vent circuits


Aerosol Therapy Equipment Airway Appliances

Used to deliver aerosol therapy A. Aerosol mask

B. Face tent

C. T-Tube

D. Tracheostomy mask

A B C D


Aerosol Therapy Equipment Metered Dose Inhalers (MDI)

Medication administration Bronchodilators Steroids


Aerosol Therapy Equipment MDI Accessory Devices

Reduce oropharyngeal deposition Eliminate need for hand-breath

coordination


Aerosol Therapy Equipment Dry Powder Inhaler (DPI)

Patient creates an aerosol by drawing air through a dose of finely milled drug powder

Do not require the hand-breath coordination needed for MDIs, but do require high inspiratory flows

aerosol therapy and nebulizers ret 2274 respiratory therapy theory lab i module 6.1

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