ICP / CPP

Cerebral Perfusion Pressure: CPP = MAP − ICP

MAP (mmHg)

ICP (mmHg)

Result

68 mmHg

Adult target post-TBI (60–70 mmHg)

Show working

CPP = MAP − ICP = 80 − 12 = 68 mmHg

Clinical note:Brain Trauma Foundation: target CPP 60–70 mmHg in adult TBI. Normal ICP 7–15 mmHg; treat sustained > 22 mmHg. Avoid hyperventilation past PaCO₂ 30 mmHg (ischemia). Levelling: zero arterial transducer at the tragus for accurate cerebral MAP. Education only.