BRTP 09 Aerosol Medication Flashcards
Ideal particle size for aerosol medication
0.01 to 3.0 microns in diameter
Ideal concentration of aerosol medication
100 to 1,000 particles/mL of gas
5 main factors effecting deposition and penetration
gravity, kinetic activity, particle inertia, physical nature of aerosol, and ventilatory pattern
Best way to measure obstruction therapy
Peak flow meter will give you objective data….it is the best measurement
three types of pMDI
conventional, breath actuated, and soft mist
two reasons for rinsing your mouth after pMDI use
prevents oral thrush from steroid use, but if not using a steroid, it will still minimize systemic effects
What accessory device is recommended between spacer vs valved holding chamber?
Always valved holding chamber
Drug re-concentration
Main problem with LVN. Particles that become larger are re deposited in reservoir resulting in increased concentration of the administered drug.
Nebulizers are typically ran on what gas flow?
6-8 lpm
main purpose of bland aerosol therapy
Pulmonary toilet, it hydrates secretions to induce secretion removal.
Size of particles to be deposited in lower airways aka bronchi
2-5 microns
size of particles to be deposited in nose/ upper airway
5 to 50 microns
What do we want to happen to breath sounds after aerosol therapy?
breath sounds such as wheezing getting louder. Diminished sounds is NOT a good thing.
Which part of the pMDI allows for precise amount of medication?
The metering valve. This is what is pushed down towards the jet which then releases the medication
Inspiration length while taking pMDI
you want to continue inspiration until total lung capacity is reached (TLC)
how long is the breath hold during inhaler use?
10 seconds
How long do you wait between puffs of an inhaler?
one minute
main difference between holding chamber and spacer
Holding chamber contains valves that keeps medication from coming out of the wrong area if you breath back into it. **Decreases oral deposition
What is the patient feedback involved with using a holding chamber with an inhaler?*****
It will make a musical sound if the patient is inhaling too quickly
two common causes for little aerosol coming out of a pDMI
Check for debris blocking the mouth piece AND OR check if it is empty….some inhalers do not have a meter counter on the back
what are baffles?
they are located in Jet nebulizers and they help decrease the number or large particles
two types of jet nebs
sidestream or mainstream
small volume neb treatments take how long and how much solution can they hold in them?
5 to 30 min long and can contain 2-6 mL of solution
how long is the reservoir tubing for LVN vs SVN
small volume neb uses 50 mL (not always needed tough) while LVN uses 250mL
