After connecting an oxygen regulator to an "H" cylinder and turning the direct-acting valve on, the respiratory therapist attempts to turn on the flow of oxygen. The desired gas flow is not achieved
Which of the following is (are) the most likely problem(s)?
1. The therapist is using the wrong regulator.
2. The pressure in the cylinder is inadequate.
3. The regulator outlet is obstructed.
4. There is a leak in the connection between the cylinder outlet and the regulator.
a. 1 c. 2 and 3
b. 2 and 4 d. 1, 2, and 4
ANS: C
Failure to achieve a desired gas flow from a cylinder regulator can result from inadequate pres-sure or from an obstruction at the regulator outlet. There would be a hissing noise if there was a leak. Safety systems prevent the wrong regulator from fitting an oxygen cylinder.
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