Aclient with a head injury is being monitored for increased intracranial pressure (icp). his blood pressure is 90/60 mm hg and the icp is 18 mm hg; therefore his cerebral perfusion pressure (cpp) is:

52mmHg

Explanation:

You'll need to use the following equation:

CPP = MAP - ICP

CPP is the difference between mean arterial pressure (MAP) and ICP. Your brain is perfused by some MAP, which is partially counteracted by the ICP:

MAP = 1/3 systolic BP + 2/3 diastolic BP

MAP = 1/3 (90) + 2/3 (60)

MAP = 30 + 40

MAP = 70

CPP = MAP - ICP

CPP = 70 - 18

CPP = 52

answer:

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