When a patient is suspected of having a concussion, or brain injury, doctors often turn to computed tomography, or CT, scans to find out for sure. In a CT scan, a series of X-rays is taken. Each one shows an individual "slice" of the brain, and they can be combined to form a complete three-dimensional picture. Because of the amount of radiation patients are exposed to, however, doctors question the use of the scans, especially for children. Now researchers have proposed an alternative way of diagnosing head injuries: a simple blood test. The test detects proteins that burst out of brain cells into the bloodstream immediately after an injury. It allows doctors to determine whether a patient has suffered head trauma and needs further treatment. What is the main idea of the passage?

halloween: it’s my favorite holiday

halloween is one of the best holidays for some people but it can also be scary for others. halloween is a holiday where some people believe spirits and soul of the dead that haven’t moved on will come back again to haunt the lives of the living. this is why many people dress up in costumes to disguise themselves as someone else. some people like us wish to be something that we would benefit in life from. like angels of god. some dress up just to be unique from the others. many families stay home and watch scary movies and others dress in their tremendous costumes and knock on each door to either get a trick or a treat.

personally everybody loves halloween because i could be someone else one day out of the year. it’s fun and entertaining, especially for kids. halloween also has a lot of history. many myths and beliefs say that witches and warlocks are alive and living among us. is this a trick or a truthful treat?

halloween may have secrets and scary things behind the door but we love halloween and it is beautiful to see how happy children are when each door opens full of treats and goodies. it makes everyone happy. happy halloween day.

happy to .

pls mark as brainliest.

the correct answer for odyssey ware is a give me brainliest

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explanation: