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Resp 5/6 IV
Regulators
Question | Answer |
---|---|
Reducing valve | used for reducing in gas pressure... must be reduced to working level (50 psig)...some of preset Pressure is vented if exceeds 200psi |
Flowmeter | used for control of gas flow to a patient |
Bourdon gauge (flowmeter) | (regulator with 2 circles) measures pressure and flow on the scale Can lay flat |
Thorpe tube (flowmeter) | Truly measures flow Preferred instrument to regulate flow in most patient situation. Must be help upright |
Three ways to tell if it is compensated | 1.It is labeled on back as compensated 2.With gas flow on,and thumb obstructing flow of gas, the float will fall to "0" 3.With needle valve cloased, the flowmeter is plugged into wall outlet, the float will momentarily jump and fall back to 0 |
Thorpe Tube uncompensated | Flow going to patient is increased above what tube displays |
Flow resrictor disadvantage | it is fixed-produces preset flow (cannot be changed) |
Wall connections | are DISS connections |
Air entrainment systems | The higher the amount of air entrained, the higher the total flow of gas going to patient |
Calculation of FIO2 | (air flow X21) +(oxygen flow X100) / airflow +oxygen flow |
Blender | Alarm sounds when there is a differnce between the 2 of more than 10 psi |