Humidity and Aerosol Therapy
What is the PRIMARY goal of humidity therapy?
Maintain normal physiologic conditions of the airway.
These are the primary organ systems affected by O2 toxicity? (there are 2)
Lungs and CNS
This device delivers low flow oxygen into the patients nose via the 2 cannulas, one for each nostril? What is the min-max liter flow that can be used?
Nasal Cannula, 1/4-6LPM
What is the recommended initial dose for NO?
20PPM
At what level of CoHB sat is HBO indicated for an adult patient?
25%
What is the most important factor that will increase the amount of humidity given to the patient? (We first learned this is physics)
Temperature.
A true high flow delivery system should be able to deliver at least this flow.
60L/min
What device is a mask that covers the patients mouth and nose and has small holes or exhalation ports on the cheek area of the mask? This mask can be used for mouth breathers. What is the min-max liter flow?
Simple Mask
5-10LPM
What is the tank factor when using heliox 80/20?
1.8
What is the half-life for CoHB at an HBO of 3ATA's?
23 minutes
This type of humidifier "traps" the patient's body heat and expired water vapor to raise the humidity of inspired gas.
HME- Heat and moisture exchanger
When determining is a device is adequate we need to obtain the patient Peak Inspiratory Flow or PIF, what is used in this calculation?
VEx3
VE= RR x Vt
This device is a mask covering the nose and mouth, it uses no "one way" valves and has a reservoir bag that hold 1L. You get 40%-70% FIO2. What is the minimum liter flow needed?
Partial Rebreathing Mask
10LPM
What is the main indication for Heliox?
Upper airway/large airway obstruction.
What is the pressure at 3ATA?
2280mmHG
760x3=2280
This is the most common device used to generate bland aerosols.
Large-volume jet nebulizer
You have to deliver the highest possible FiO2 to a man breathing at a rate of 35/min. you would choose this device.
Non rebreather mask at 12-15L/min
Remember minimum is 10L
This mask covers the patients mouth and nose and uses 2-3 "one way" valves, it has a 1L reservoir bag and can give 60%-80% FIO2. What is the minimum liter flow needed for this device?
Nonrebreathing Mask
Minimum needed- 10L
In ADULTS what are the 2 FDA approved indications for NO therapy?
Pulmonary Hypertension (PHTN) and ARDS.
Decompression sickness (the bends) is this gas that forms bubbles in the body's tissue when you ascend to quickly from diving?
Nitrogen
These two airway appliances can be used to administer bland water aerosol therapy to a patient with an intact upper airway.
Aerosol Mask and Face Tent.
There are 4 steps in this "vicious circle" that Oxygen can sometimes cause?
O2 toxicity, increased shunting, low PaO2, Increased FIO2.
This device delivers oxygen into the patients nose by 2 cannulas, one for each nostril. What makes this device unique is its ability to store oxygen during breaths. This device can reduce oxygen usage as much as 50-75%.
Nasal or Pendant Reservoir, Nasal Cannulas.
If a patient is on 80/20 heliox mix at 15LPM how much gas is the patient recieving?
27LPM
This is the process of forming new capillary beds at pressure in HBO?
neovascularization