Final answer:
In prioritizing lethal arrhythmias, the more recent the occurrence, the higher the priority for intervention.
Step-by-step explanation:
In the context of prioritizing lethal arrhythmias, the time elapsed since the occurrence of each arrhythmia is an important factor to consider. Generally, more recent arrhythmias may be more urgent and require immediate attention.
In your example, the arrhythmia that happened 6 minutes ago would be a higher priority than the one that happened 15 minutes ago. However, it's important to note that the specific circumstances and severity of each arrhythmia should be assessed by a healthcare professional to make the final decision.