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Aerosol Therapy NECC
| Question | Answer |
|---|---|
| What are some of the advantages of MDI? | Ref page 806 1.Inexpensive 2.Light,compact,resistant to moisture 3.Quick delivery of drugs 4.Precise and consistent doses 5.Available with most anti asthmatic drugs |
| What are some of the disadvantages of MDI? | Ref page 807 1.Difficulty in coordination of activation& inspiration 2.Time consuming to teach 3.Cold freon effect i.e. inability to continue to breathe when propellant is released into mouth |
| What is meant by priming the MDI? | Ref page 807 Activating a wasted dose to fill the metering chamber; used for new inhalers and those that have not been used for >4 to 6 hours. The old dose may have evaporated |
| What patients can not use DPI? | Ref page: 815 Children under 5 and patients unable to generate a high air flow. They also may not work as well in high humidity environments |
| When should an MDI be activated for a ventilator patient? | Ref page 837: Coordinate firing the MDI with the beginning of the ventilator inspiration |
| When using an MDI,how much time should you allow between actuations? | Ref page 813 Allow 30 to 60 seconds. |
| How does an atomizer differ from an SVN? | Ref page 816: Atomizers don’t have baffles. They are usually powered by a hand-squeezed bulb. Because the particles are larger, the drug deposits in the upper airway. You might deliver a local anesthetic through an atomizer prior to bronchoscopy |
| True or False:DPI Require high inspiration flow>60/l/min | Ref page 813 True |
| What are some of the Advantages of a spacer? | Ref page 810-811 1.no need to activate coordination with inspiration 2. Increases drug deposition in the lungs [130%]. 3. Reduces drug deposition in the mouth. 4.used in children with face mask 5.decreases the incidence of oral thrush |
| What are some of the characteristics of Jet Nebulizer? | Ref page 823 1.Cools during operation 2.Small aerosol particle size 3.Less expensive |
| In what part of the lung would like to deposit beta-adrenergic bronchodilator drugs? | REF PAGE 803 In the lower airways |
| What is “blow- by” technique used with infants? | Ref page 820: Blow-by is directing the mist by the baby’s mouth and nose without direct application to the face via a mask. It is not very effective. |
| SVN dosages should be adjusted when delivered to an intubated patient by what amount? | Ref page 836: Give 2 to 5 times the normal dose |
| What is the optimal flow rate and amount of solution to put in an SVN? | Ref page 817: 6 to 8 L/min |
| What are of the characteristics of Ultra sound nebulizers? | Ref page 824 1.Heats up during operation 2.Larger aerosol particle 3.More expensive 4.Less noise |
| What class of inhaled drugs requires that you always use a spacer or chamber? | Ref page 811 Corticosteroids to reduce oropharyngeal deposition |
| What is the aerosol output an ultra sound nebulizer is capable of delivering? | Ref page 824 0.2 to 1.0 ml/min |
| What are some of the hazards of aerosol therapy? | Ref page 805-806 1.Bronchospasm 2.Over hydration 3.Overheating of inspired gases 4.Delivery of contaminated aerosol 5.Tubing condensation draining into the airway |
| Why is particle size so important in aerosol therapy? | Ref page 803 The ability of aerosols to travel through the air, enter the airways, and deposit in the lung is largely based on particle size. |
Created by:
hounane
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