Suppose if you confront a life-threatening condition, how will you react? Or how will you help them to cope up with the emergency condition? You need to get prepare for the best response. When to Go to the ER Whenever you confront any type of life-threatening situation such as loss of consciousness, difficulty in breathing or trauma and you've got blockage of mind then dial number 911 and call the emergency response. Most of the time, the symptoms aren't clear in case of a heart attack, and it may be difficult to recognize whether it is a heart crisis or heartburn. Here are some common symptoms for life-threatening conditions; Pressure on the heart with discomfort, a feeling of fullness and pain on the left side of the chest which lasts for more than one minute and then comes back. When pain rotates, beyond the chest and to the other parts like, to the arms, back, neck, stomach, and the jaw. Shortness of breath. Symptoms that happens with nausea, anxiety, and indige...