Ketamine is associated with increased intracranial pressure. Which option best reflects this effect?

Ketamine is associated with increased intracranial pressure. Which option best reflects this effect?

• A. False
• B. Only in prolonged use
• C. It may increase ICP
• D. It decreases ICP

Answer: (C)

Ketamine can influence intracranial dynamics because it can raise cerebral blood flow and, in turn, potentially increase intracranial pressure if cerebral compliance is limited or ventilation is not well controlled. The key idea is that this effect is not guaranteed in every patient, but it is a real possibility under certain conditions (for example, with impaired intracranial compliance or hypercapnia). Therefore, the statement that it may increase ICP best captures the nuance: it’s not universally true that it will raise ICP, and it isn’t a decrease. The options stating it never increases ICP or that it decreases ICP are not accurate reflections of the potential effect, while saying it’s only in prolonged use misses the broader context.

Ketamine can influence intracranial dynamics because it can raise cerebral blood flow and, in turn, potentially increase intracranial pressure if cerebral compliance is limited or ventilation is not well controlled. The key idea is that this effect is not guaranteed in every patient, but it is a real possibility under certain conditions (for example, with impaired intracranial compliance or hypercapnia).

Therefore, the statement that it may increase ICP best captures the nuance: it’s not universally true that it will raise ICP, and it isn’t a decrease. The options stating it never increases ICP or that it decreases ICP are not accurate reflections of the potential effect, while saying it’s only in prolonged use misses the broader context.