What a Traumatic Brain Injury Is, and Why It Matters for an Older Resident
MedlinePlus, the health information service of the U.S. National Library of Medicine, defines a traumatic brain injury as "a sudden injury that causes damage to the brain." It "may happen when there is a blow, bump, or jolt to the head," which MedlinePlus calls a closed head injury. A brain injury can also happen when an object penetrates the skull, which is a penetrating injury.
MedlinePlus describes symptoms as mild, moderate or severe. Concussions are a type of mild brain injury, and most people recover completely in time, though the effects can sometimes be serious. The symptoms of a mild injury can include a brief loss of consciousness in some cases, headache, confusion, dizziness, lightheadedness, blurred vision, ringing in the ears, fatigue, changes in sleep, mood or behavior changes, and trouble with memory, concentration or thinking. MedlinePlus notes that many people with a mild injury stay conscious.
A moderate or severe injury may bring those same symptoms and others, including a headache that gets worse or does not go away, repeated vomiting or nausea, seizures, not being able to wake up from sleep, a widened pupil in one or both eyes, slurred speech, weakness or numbness in the arms and legs, loss of coordination, and increasing confusion, restlessness or agitation. MedlinePlus says more severe injuries can lead to serious physical and psychological symptoms, coma and even death.
The harm can reach past the injury itself. MedlinePlus states that some people with a brain injury may have permanent disabilities, and that a brain injury can raise the risk of other health problems such as anxiety, depression and post-traumatic stress disorder.
MedlinePlus also states that adults aged 65 and older are at the greatest risk for being hospitalized and dying from a brain injury. That is part of why a head injury to an older resident is taken seriously, and why the medical record after it carries so much weight. None of these symptoms, on their own, tells anyone how the injury happened or who was responsible.