A nurse is attending to a client with multiple sclerosis who reports a sensation of tightness around their torso. What condition should the nurse identify this symptom as indicating?

Choice A rationale
A contrecoup injury is indeed a “true” injury. It occurs on the side of the brain opposite to the point of impact and can have severe consequences, including brain damage. Therefore, this statement is incorrect.
Choice B rationale
The severity and healing time of contrecoup injuries can vary greatly depending on the force and location of the impact, as well as individual health factors. It’s not accurate to say that contrecoup injuries are generally less severe and heal more quickly over time.
Choice C rationale
This statement is correct. A coup injury refers to the brain damage that occurs directly under the point of impact, while a contrecoup injury occurs on the opposite side of the brain from

where the head is struck. These injuries can occur separately or together, but if the blow is strong enough, they usually appear together.
Choice D rationale
The sequence of coup and contrecoup injuries is not as this choice describes. The coup injury happens at the point of impact, and the contrecoup injury happens when the brain rebounds and hits the opposite side of the skull. Both types of injuries can impact the brain’s blood supply.

Choice A rationale
Reducing the temperature in the room is not typically a treatment for brain herniation. While it’s important to maintain a comfortable environment for the patient, there’s no evidence to suggest that room temperature has a direct impact on the progression or treatment of brain herniation.
Choice B rationale

Hyperventilating the patient is a possible treatment for brain herniation. Hyperventilation causes vasoconstriction, which can decrease cerebral blood flow and intracranial pressure, potentially relieving the pressure caused by the herniation.
Choice C rationale
Lowering blood pressure is not typically a treatment for brain herniation. While maintaining a stable blood pressure is important in all patients, aggressively lowering blood pressure could potentially decrease cerebral perfusion and worsen the patient’s condition.
Choice D rationale
Decreasing sedation is not typically a treatment for brain herniation. In fact, sedatives might be used to reduce metabolic demands and control agitation in a patient with brain herniation.