HTHRHSC 5500 Exam 7 Questions and Correct Answers | Latest Update | A+

what happens when aerobic metabolism stops Ans: less ATP, glutamate release, Ca2+ into cell (NMDA receptor opens), cell injury and death what happens when anaerobic metabolism used Ans: lactic acid produced, lowered pH causes damage, Hb less likely to carry O2 results of Ca2+ cascade Ans: release of intracellular enzymes, protein breakdown, free radical formation, lipid peroxidation, fragmentation of DNA, nuclear breakdown vasogenic edema Ans: caused by infection, meningitis, increased extracellular fluid -impaired blood brain barrier function, proteins and water move to extracellular fluid cytotoxic edema Ans: water intoxication, increased intracellular fluid -ischemia, decreased Na+/K+ pump function, extracellular fluid moves into cell causing rupture s/s cerebral edema Ans: neurological deficits, decreased consciousness what are normal levels of intracranial pressure Ans: 10% blood, 10% CSF, 80% brain tissue, 0-15mmHg herniation Ans: brain pushes from high-pressure regions to low-pressure regions, supra or infra tentorium cerebelli (separates cerebellum from cerebrum) etiol herniation