Which of the following conditions results from an injury to the head with symptoms including headache, dizziness, and vomiting?

The condition resulting from an injury to the head that includes symptoms such as headache, dizziness, and vomiting is a concussion. A concussion is a type of traumatic brain injury caused by a blow to the head or body that causes the brain to move rapidly back and forth. This motion can create a chemical change in the brain and sometimes damage brain cells. The symptoms of a concussion can vary greatly but commonly include headache, dizziness, nausea, and vomiting, which are consistent with the symptoms mentioned in the question.

While fractures and contusions may also occur with head injuries, they typically present with different symptoms and specific complications. A fracture refers to a break in the skull bone, which may not directly cause the listed symptoms unless there is significant damage to surrounding tissues or the brain. A contusion, or bruising of the brain tissue, can also cause serious symptoms but is characterized by the presence of localized damage rather than the more diffuse symptoms typical of a concussion. Hemorrhage refers to bleeding, either within the brain or around its surface, and while this can also lead to severe symptoms, the immediate presentation of headache, dizziness, and vomiting points more clearly to a concussion as the underlying condition.