In which situations is it vital to call the local emergency services?

It is vital to call the local emergency services in any situation where there is an immediate threat to someone's life or safety, including mental health crises. Specifically, these situations include: when an individual is actively suicidal and has a plan, intent, and means to carry out that plan; when an individual is experiencing a severe psychotic episode and is a danger to themselves or others, exhibiting aggressive or violent behavior; when an individual has overdosed on a substance and is unresponsive or having difficulty breathing; when an individual is experiencing a medical emergency alongside a mental health crisis, such as a heart attack or stroke; when an individual is experiencing a crisis and refuses voluntary assistance but poses a significant risk to themselves or others. Active suicidal ideation with a plan, intent, and means indicates an imminent risk of suicide. A severe psychotic episode with aggression or violence poses an immediate threat to the safety of the individual and those around them. A substance overdose can lead to respiratory failure and death. A medical emergency alongside a mental health crisis requires immediate medical attention. When an individual refuses voluntary assistance but poses a significant risk, emergency services may be necessary to ensure their safety. In these situations, calling emergency services is crucial to provide immediate intervention and potentially save lives.