Practice Quiz

Respiratory Therapist

Category - Initiation and Modification of Interventions

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A patient on supplemental oxygen at 2L/min is being transported from the emergency room to the radiology department and then to a floor bed.

How many hours will a full E cylinder provide oxygen to a patient when set at 2 L/min?
  1. 3 hours
  2. 1.5 hours
  3. 5 hours
  4. 6 hours
Explanation
Answer: C-A full E cylinder will provide oxygen set at 2 L/min for roughly 5 hours.

An E cylinder contains 1900 psi. Use the following formula to determine the amount of time you have to provide oxygen with an E cylinder.
0.35 x 1900 psi ÷2 L/min = 332.5 minutes (5.54 hours).
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