Regulators and Flowmeters. RET 2274 Respiratory Care Theory 1 Module 3.0. Regulators and Flowmeters. Regulating Gas Pressure and Flow
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Respiratory Care Theory 1
Available as preset or adjustable
(A) High-pressure inlet
(B) Pressure gauge
(H) High-Pressure gas inlet
(C) High-pressure chamber
(I) Gas outlet
(G) Valve stem
(E) Flexible diaphragm
(D) Ambient-pressure chamber
0 – 75 L/min (5-L/min intervals)
0 – 3 L/min (1/4-L/min intervals)
0 – 15 L/min (1-L/min interval)
An RT has an order to transport a patient to radiology with oxygen. What equipment should the therapist select?
Because the RT has to transport a patient using oxygen, they should select an E cylinder with an adjustable regulator that includes a Bourdon gauge (unaffected by gravity)
An RT has to set up a pneumatically powered ventilator with oxygen in the ambulatory clinic, where there are not oxygen outlets. What equipment should the therapist select?
Because pneumatically powered ventilators require 50 psig and no central oxygen outlets are available, the RT needs a preset reducing valve and a large H cylinder of oxygen.
An RT has to set up oxygen therapy with a jet nebulizer for a patient in the ICU. What equipment should the RT select?
Because moderns ICUs have central wall outlets for oxygen, The RT needs only select a flowmeter. A compensated Thorpe tube is required for metering flow through high-resistance equipment such as jet nebulizers