Which pulse rate is most commonly associated with increased ICP?

Bradycardia is the pulse rate most commonly associated with increased intracranial pressure (ICP) due to the body's compensatory mechanisms in response to elevated pressure within the skull. When ICP rises, it can lead to a decrease in heart rate as part of the Cushing's reflex, which is a physiological response to protect the brain from further damage. This reflex is characterized by hypertension, bradycardia, and irregular respirations.

As ICP increases, the brain undergoes various stress responses, including alterations in cerebral perfusion pressure. Eventually, bradycardia occurs as the body attempts to maintain adequate blood flow to the brain while managing the increased pressure.

Other pulse rates such as tachycardia, which indicates a rapid heart rate, can occur in numerous conditions but are less indicative of increased ICP specifically. A normal rate doesn’t provide sufficient information to suggest any issues with ICP. An irregular rhythm might suggest other cardiovascular issues but does not directly correlate with increased ICP. Thus, bradycardia stands out as the most relevant pulse rate associated with increased intracranial pressure.