What is a primary concern following an intracranial hemorrhage?

After an intracranial hemorrhage, a significant primary concern is the increase in intracranial pressure (ICP). This condition arises because the accumulation of blood in the cranial cavity can occupy space, leading to swelling and the displacement of cerebrospinal fluid. As the pressure within the skull rises, it can lead to a number of serious complications, including reduced cerebral perfusion, possible herniation, and damage to brain tissue. Monitoring and managing ICP becomes crucial in the post-hemorrhage phase to prevent secondary neurological injury and other life-threatening outcomes.

The other options, while potentially relevant in a broader clinical context, are not the foremost concerns immediately after an intracranial hemorrhage. Infection can occur later due to a compromised state, pneumonia can result from immobilization or aspiration risks, and seizure activity may develop as a sequela of damage to brain tissue, but these issues do not take precedence over the immediate threat posed by increases in intracranial pressure.