TNCC Best Graded Exam Questions

Normal levels of intracranial pressure - ANSWER-0-15 What is CPP and what is the normal range? - ANSWER-Cerebral perfusion pressure- measure of how much blood is getting to the brain Range for brain to auto regulate: 50-160 Role of MAP in TBI - ANSWER-if CPP isn't in normal range than MAP provides profusion to brain If pt is hypotensive (<90 systolic) the MAP is not proficient then brain becomes ischemic If pt is hypertensive edema can result hypercarbia and perfusion in TBI - ANSWER-Increased carbon dioxide causes vasodilation. Decreased causes vasoconstriction Over ventilating can cause vasoconstriction and hypoperfusion in the brain Early signs of ICP - ANSWER-Headache Nausea Decreased LOC Amnesia Late signs of increased ICP - ANSWER-dilated, nonreactive pupils unresponsiveness to verbal stimuli Posturing