It will be capped or have tubing connected to it. Blood is taken from an artery in your wrist, elbow, or groin. It is tested for its oxygen content. This screen shows a tracing of each heartbeat. Your heart will be watched for signs of problems that could be related to your head injury.
Doctors use it to detect hidden damage to the brain.
When you feel better, you will be allowed to get up. Your doctor will allow you to leave the hospital as soon as you can be watched safely at home. Remember, though, that it is possible for more serious symptoms to develop later. You MUST have someone with you at home for the next 24 hours in case you get worse. Rest in bed for 24 hours.