Preset Reducing Valve
Flow Restrictor Valve
Adjustable Reducing Valve
Multi-Stage Reducing Valve
Watch out for the pulmonary embolus!
Pressure could read falsely high or still show flow even though air was not flowing.
After un-kinking the line, tank has to be flipped over.
Needle valve location in respect to thorpe tube
Made to handle different pressures
Non-compensated will false-read low with added downstream backpressure
More than 1 answer is correct
None of the above options are anywhere near correct
Running venti-mask at 10L will decrease fiO2
Not enough flow to meet demands,
There is nothing wrong with this scenario
Crank it up!!
Transfer the patient to partial rebreather mask
Transfer the patient to non-rebreather mask
Transfer the patient to another floor and let them deal with it
Transfer the patient to a nebulizer mask
So what, is this some kind of trick question?
Switch the patient to a nasal cannula
Switch the patient to a partial rebreather mask
Switch the patient to a nebulizer
Nasal cannula at 4L
Partial rebreather mask
Non rebreather mask
Try to persuade the patient to use a cannula at 2-3L while he wants to talk and eat
Quit -- you don't need this aggravation.
Make him put the mask on -- don't take no for an answer.
Paralyze him, and then see how he feels.
Wait for him to either comply or pass out, at which point you can put it on him without resistance
A fixed device provides for all patient demands (with adequate flow) at that fiO2.
A variable device allows you to change fiO2 on the fly.
A fixed device is only able to provide one fiO2 value.
A variable device's fiO2 will be largely determined by the patient's O2 demands.
Increased tidal volume and respiratory rate will cause fiO2 to drop with a variable device
Increased tidal volume and respiratory rate will cause fiO2 to rise with a variable device
Fixed devices shouldn't be used on COPD patients due to hypoxic drive in some patients.
Air Entrainment mask (venti mask)
Air Entrainment Nebulizer
Partial Rebreather Mask