IITLS Exam Final Questions With Verified Answers

What is normal paCO2 - Answer 35-45mmHg When is intercranial pressure considered dangerous - Answer They rise in 15 mmHg and cerebral herniation may occur at pressures above 25 mmHg How is cerebral perfusion pressure calculated - Answer Subtracting intercranial pressure from mean arterial blood pressure What is map - Answer Mean arterial pressure If ICP increases then what happens to cerebral perfusion pressure - Answer Cerebral perfusion pressure will decrease Through perfusion pressure must maintain at least what - Answer 60 mmHg which requires maintaining a systolic blood pressure of 110 What is cerebral herniation syndrome - Answer A critical syndrome in which swelling of the brain forces portions of the brain through the magnum foremen causing coma, dilation of pupils, contralateral paralysis, elevated blood pressure and bradycardia When is hyperventilation indicated - Answer Cerebral herniation syndrome How many breaths per minute for children and infants with cerebral herniation syndrome - Answer 25 for children and 30 for infants Patients with ICP should have an end title CO2 of what - Answer 30 to 35 What are normal ventilation rate for adults children and infants - Answer 8 to 10,15 and 20 What is non-reflow phenomenon - Answer The inability of restoring oxygenation and blood pressure to restore perfusion to the cortex after and anoxic episode of 4 to 6 minutes What artery is often teared in acute epidural hematoma - Answer Middle meningeal artery