Flashcards in L15 CSF, ICP, CBF Deck (13)
how much CSF in the ventricles?
what's the typical pressure gradient from CSF to sinuses?
how much is cerebral blood flow?
55 mL/min/100 g brain
at which CBF does brain ischemia occur?
18-20 mL/min/100g brain
at which CBF does brain neuronal cell death occur
8-10 mL/min/100g brain
formula for cerebral perfusion pressure (CPP)?
CPP = MAP - ICP
formula for cerebral blood flow (CBF)?
CBF = CPP/CVR
what term is used to describe hydrocephalus with impaired reabsorption?
what term is used to describe hydrocephalus with blockage?
what drug can decrease CSF production?
carbonic anhydrase inhibitor (acetazolamide)
how to lower ICP?
relieve mass effect
how to decrease CSF?
external ventricular drain
decrease CSF production
decrease brain interstitial fluid