What is the normal range for intracranial pressure (ICP)?

The correct range for normal intracranial pressure (ICP) is 5-15 mm Hg. Maintaining this range is crucial because it reflects the balance of intracranial components, including brain tissue, blood, and cerebrospinal fluid (CSF). When ICP rises beyond this level, it can indicate potential conditions such as cerebral edema, hemorrhage, or tumors, which may lead to serious neurological deficits and require prompt medical intervention. Monitoring ICP is essential in critical care settings, especially for patients with traumatic brain injury or other neurologic conditions.

Other ranges presented, while they may reflect levels seen in specific situations, are not considered normal values for ICP in healthy adults. Understanding the normal range is fundamental for recognizing abnormal situations and ensuring appropriate management of neurological emergencies.