How long will a full E cylinder oxygen tank last when set to run at 5 L/min?

To determine how long an E cylinder of oxygen will last at a flow rate of 5 L/min, it's essential to understand the capacity of an E cylinder and how to calculate the duration based on the flow rate.

An E cylinder oxygen tank typically has a capacity of about 660 liters of oxygen when full. To find out how long it will last at a flow rate of 5 L/min, we can use the formula:

Duration (minutes) = Total volume of gas (liters) / Flow rate (L/min)

Substituting the values, we get:

Duration = 660 liters / 5 L/min = 132 minutes.

Therefore, when considering standard settings and calculations, the E cylinder would last approximately 132 minutes at a flow of 5 L/min. The reasoning leads to the choice of 132 minutes as the correct response, highlighting the importance of understanding gas volume and flow rates in respiratory care.