NEUROLOGY
SURGERY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A patient is admitted to the hospital with an ICP reading of 20 mm Hg and a mean arterial pressure of 90 mm Hg. Which is the calculated cerebral perfusion pressure?
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a. 50 mm Hg
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b. 60 mm Hg
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(C 70 mm Hg
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d. 80 mm Hg
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Explanation:
Detailed explanation-1: -In the horizontal position, the normal ICP in healthy adult subjects was reported to be within the range of 7–15 mm Hg. In the vertical position it is negative with a mean of around −10 mm Hg, but not exceeding −15 mm Hg. The definition of raised ICP depends on the specific pathology.
Detailed explanation-2: -Perfusion pressure is the difference between the inflow Pi and outflow pressure Po, measured at the organ level: CPP=MAP-CVP or CPP=MAP-ICP if ICP>CVP.
There is 1 question to complete.