Which of the following is a general care step for sudden illnesses?

Calling 911 for help is a crucial response when dealing with sudden illnesses. This step ensures that professional medical assistance is on the way, which can be vital in emergency situations where immediate intervention may be needed. Sudden illnesses can manifest in various ways, often requiring quick assessment and advanced medical care.

Moreover, contacting emergency services allows trained responders to provide guidance while you assess the situation and provide necessary first aid. It's a proactive measure to ensure the person experiencing the sudden illness receives appropriate care as quickly as possible.

The other steps, such as assessing for danger, are important in a general context, but they do not encompass the comprehensive action required for handling sudden illnesses. Ignoring the signs and symptoms can detrimentally affect the person's health, and failing to call for help when needed can lead to serious outcomes. Thus, reaching out for emergency medical assistance is the foundational step in responding effectively to a sudden illness.