What is the E cylinder factor used for in respiratory therapy?

The E cylinder factor is essential in respiratory therapy because it helps healthcare professionals calculate the duration of gas supply from an E cylinder, which is commonly used for oxygen delivery. The specific factor for an E cylinder is 0.28, which represents the volume of gas in cubic feet that can be delivered per psi of pressure within the cylinder.

When utilizing an E cylinder of oxygen, understanding this factor is critical for determining how long the gas will last based on the prescribed flow rate. By multiplying the cylinder's psi by the E cylinder factor, clinicians can estimate the time remaining until the cylinder is empty, aiding in effective patient management and ensuring that oxygen therapy continues uninterrupted.

This understanding is critical for respiratory therapists to ensure patients receive consistent and adequate respiratory support.