Article: If you come across an emergency medical situation where people are injured, immediately call for an ambulance if nobody else has. Time is of the essence, so get help on the way first, then assess the injuries and deliver basic first aid while you're waiting for help to arrive. Precious lost minutes can make the difference between life and death, regardless of your level of first aid training.  Even if people are seemingly not seriously injured, you should still call 9-1-1 for help because you'll be unable to make an appropriate diagnosis due to either lack of training or necessary medical equipment. No one expects you to play doctor and fix any injuries. Focus on getting help to arrive and doing the basics — stopping any serious bleeding, offering support and trying to prevent shock (see below). Before you approach the injured person to administer first aid, you need to take a moment to look around and make sure there is no immediate danger. If you rush into a scene without checking for threats to your safety — like a downed electrical wire, falling debris, or a dangerous person — you may become injured yourself. Then all you have accomplished is giving emergency personnel two people to rescue instead of one. Once trained emergency medical help is called and on the way, assess whether an injured person is unconscious and/or not breathing. If the person is not breathing, giving her CPR is your top priority. Check the person's airway to see if it's blocked before giving CPR. Don't check for broken bones until the person is revived and breathing.  If you do not have CPR training, you should not worry about administering rescue breaths — focus on chest compressions instead. If you are trained and confident in your abilities, then proceed with CPR that includes rescue breathing.  Carefully position the person on her back and kneel next beside her, near her shoulders. Place the heel of your hand on the person's breastbone, between her nipples. Place your other hand on top of your first hand and use all your body weight to press down on the chest.  Administer chest compressions at a rate of about 100 pumps per minute (imagine pressing to the rhythm of the Bee Gee's song "Stayin' Alive").  Give chest compressions until help arrives. If you become tired, see if someone can switch off with you. If you are trained in CPR, then check the person's airway after 30 compressions and begin to deliver rescue breathing. Once help is on the way, the person is breathing, bleeding is under control and you've stabilized any broken bones, you need to remain vigilant for shock. Shock is a physiological response to loss of blood, injury and pain, which can quickly become fatal if not properly addressed. Signs to look out for include: feeling faint, rapid shallow breathing, low blood pressure, confusion, strange / inappropriate behavior, loss of consciousness.  To combat shock: control bleeding first, lay the person down with his head slightly lower than his torso, elevate his legs, keep him warm with a blanket and offer him liquids to drink if he is able.  Calm him down by not panicking yourself and make sure he knows that help is on the way. Reassure him that he'll be okay (even if you don't think he will be) and distract him from looking at his injuries.
What is a summary of what this article is about?
Call for help. Survey the scene. Determine if the person is breathing. Watch for shock.