For some medical problems, experts say people should call 911 or immediately go to a nearby emergency room. Symptoms and conditions that should be treated right away include:
• Difficulty breathing, shortness of breath
• Chest or upper abdominal pain or pressure
• Fainting, sudden dizziness, weakness
• Changes in vision
• Confusion or changes in mental status
• Any sudden or severe pain
• Uncontrolled bleeding
• Severe or persistent vomiting or diarrhea
• Coughing up or vomiting blood
• Suicidal feelings
• Difficulty speaking
• Unusual abdominal pain
• Serious burns
• Poisoning or suspected poisoning