Teresa, don’t look.
A simple scene. Skateboard accident.
What the video shows: A skateboarder tries to do a trick and fails. He falls, catching himself with his hand. His left forearm shows obvious deformity and he is in pain. No bleeding.
You are a witness to this event. Okay, what do you do?
First, fast, get help rolling. Instruct a bystander to call 9-1-1. If no bystander, do it yourself.
The scene is safe (unless it looks like the patient’s friends are going to get ugly on you). Approach the patient, introduce yourself, and ask if he wants help.
Assuming he says “yes.” Instruct a bystander to take and hold normal inline stabilization of the patient’s c-spine. (That is, hold his head steady. All trauma patients have broken necks until proved otherwise.)
ABCs. Patient is talking; airway and breathing are okay. No obvious bleeding, and patient’s skin color is normal. Circulation appears okay.
The patient has an isolated injury of the left forearm. Check motion, sensation, and pulse in his left hand/wrist. Check for pain, tenderness, swelling in left wrist, elbow, and shoulder.
Splint the left forearm in normal anatomical position, from wrist to elbow, with the hand in position of function (i.e. curled partly closed).
Apply sling and swathe.
Check circulation, motion, and sensation in the left hand. There should be no change from your earlier check.
While you’re doing all this keep up a flow of light banter, during which you hope to learn the if the patient has any allergies, whether he takes any medication, what his medical history is, the last time he had anything to eat or drink, whether he hit his head or lost consciousness. Remember, you may be the last person who can get coherent answers out of the patient, so ask, and write the answers down. Count his pulse and respirations. Write them down (with the time when you checked them).
Check for other injuries, then reassess the ones you’ve already found. When professional help arrives report to the senior person; request further assignment.