Signs of a stroke or heart attack
Loss of consciousness
Severe shortness of breath, stopped breathing or pulse
Convulsions that last more than 15 minutes or any unexpected convulsions
Severe cuts where the edges won't come together
Injuries in which bleeding does not stop after 10 minutes of direct pressure
Sudden, severe pain anywhere in the body
Poisoning (also call poison control at 800.222.1222 to begin home treatment)
A serious animal bite (broken skin)
Severe burns, including chemical and electrical, especially on the face
A severe or worsening reaction to an insect bite or sting
Reaction to a medication, especially if breathing is difficult
A major injury, such as a head trauma or a severe sports injury
Unexplained drowsiness or disorientation
Coughing up or vomiting blood
Severe or persistent vomiting
Signs of shock, including pale, clammy skin, weak and rapid pulse
Suicidal or homicidal feelings