What is the minimum supply of oxygen required for emergency response?

The minimum supply of oxygen required for emergency response is a 20-minute supply at a flow rate of 10 liters per minute (LPM) in a portable cylinder. This standard ensures that the patient can receive adequate oxygen during transport to a medical facility, which is crucial in maintaining oxygenation, especially in emergency situations where time-critical decisions need to be made.

The rationale for this requirement lies in the need to provide sufficient oxygen for patients who may be in respiratory distress or have compromised airway management. A 20-minute duration at the specified flow rate represents a balance between portability and the ability to provide enough oxygen for patients needing immediate intervention. This duration is considered a practical minimum that allows for transportation in a variety of scenarios without the risk of running out of oxygen prematurely.

Other options either fail to meet the duration or flow rate necessary for emergency situations or involve stationary cylinders that are less practical for the dynamic environment of emergency response. Therefore, the specified portable supply not only ensures adequate patient care but also aligns with best practices in emergency medical services.