A nurse is gathering neurological data on a patient with a neurological injury and observes signs indicative of Cushing’s Triad.
The nurse understands that Cushing’s Triad is a nervous system response that could prevent which of the following conditions?

Choice A rationale
Parkinson’s disease is a neurodegenerative disorder that affects movement, but it is not a known risk factor for subarachnoid hemorrhage (SAH)10111213.
Choice B rationale
Alzheimer’s disease is a type of dementia that affects memory, thinking, and behavior, but it is not a known risk factor for SAH10111213.
Choice C rationale

Being male is not a specific risk factor for SAH. Both men and women can be affected by this condition.
Choice D rationale
Marfan’s syndrome is a genetic disorder that affects the body’s connective tissue. People with Marfan’s syndrome have a higher risk of developing aneurysms, including those in the brain, which can lead to SAH10111213. Cerebral edemaCerebral edema Explore

Choice A rationale
Penetrating traumatic brain injuries can cause significant damage to the brain. The extent of this damage is often related to the size, route, and speed of the object entering the brain. A larger, faster object or one that follows a path through vital areas of the brain can cause more severe injury. This is because the object can disrupt normal brain tissue and function, leading to a range of potential effects, from temporary changes in brain function to long-term complications or even death.
Choice B rationale
While it is true that a penetrating injury can cause leakage of cerebrospinal fluid (CSF), this is not the primary source of damage in such injuries. CSF leakage can lead to complications such as meningitis, an infection of the protective membranes covering the brain and spinal cord.
However, the primary damage in penetrating brain injuries comes from the direct physical disruption of brain tissue by the object.
Choice C rationale
Coup and contrecoup injuries are terms used to describe injuries that occur at the site of impact (coup) and on the opposite side of the brain (contrecoup). These injuries are typically associated with blunt force trauma, not penetrating injuries. In a penetrating injury, the damage is localized to the path that the object has taken through the brain, rather than at the point of impact and its opposite side.

Choice D rationale
While a penetrating object can indeed shatter the skull and potentially cause an infection, the primary damage in penetrating brain injuries is caused by the direct injury to the brain tissue itself. Infections are a secondary complication that can occur if bacteria enter the brain through the wound.