You are about to transport a patient from computerized tomography (CT) to the intensive care unit who is being bagged with a bag-mask. You set the liter flow at 15 Lmin. The cylinder reads 1,000 psi. How long do you have before the cylinder is empty?

Which of the following best describes how to determine relative humidity?

Upon inspection you see the letter and number combination of 3AL stamped into an oxygen cylinder’s shoulder. This means:

A heat and moisture exchanger (HME):

A nasal cannula running at 4 L/min delivers approximately what FIO2?

Dry powder inhalers (DPIs):

Which of the following aerosol delivery devices is intended to be used without an artificial airway?I. Briggs adapter (T-piece)II. face tentIII. trach maskIV. aerosol mask

A HAFOE (high air flow with oxygen enrichment) is set at 35%. What is the air-to-oxygen entrainment ratio?

A HAFOE (high air flow with oxygen enrichment) mask is set at 40%, and the oxygen flowmeter is running at 6 L/min. What is the total flow to the patient?

The DE Ecosystem must support both horizontal and vertical scalability. Horizontal scalability refers to: