ATLS Written Review Latest 2021 Graded A

What is the primary goal of treating TBI? How is this done? -Answer- preventing secondary brain injury. This is done by maintaining blood pressure and providing adequate profusion. After managing ABCDEs of TBI what MUST be identified if present? How is this done? - Answer- mass lesion that requires surgical evacuation is critical! this is done with CT. NOTE: obtaining a CT should not delay patient transfer to trauma center. Which brain lobes do the following hold: 1. anterior fossa: 2. middle fossa: 3. posterior fossa: -Answer- 1. anterior fossa: frontal lobes 2. middle fossa: temporal lobes 3. posterior fossa: lower brainstem and cerebellum What are the 3 layers of the meninges? -Answer- dura mater, arachnoid mater, pia mater What does the dura mater adhere firmly to? -Answer- the skull. it is tough and fibrous What layer of the meninges splits into two leaves as specific sites to enclose large venous sinuses? What do these sinuses do? -Answer- dura mater. these sinuses provide major venous drainage from the brain. What is the midline sinus of of the brain that splits into two sinuses: bilateral transverse and sigmoid sinus? What side are these bigger on? -Answer- The main sinus enclosed by the dura major is the midline superior sagital sinus. This splits into the sigmoid and bilateral transverse sinuses which are larger on the right side.