NR 546 FINAL EXAM QUESTIONS WITH CORRECT VERIFIED ANSWERS | 100% PASS (A+ CERTIFIED)

NR 546 FINAL EXAM QUESTIONS WITH CORRECT VERIFIED ANSWERS | 100% PASS (A+ CERTIFIED) What are the advantages of CT scan Correct Answer cheaper faster good for claustrophobia good for pts w/ pacemakers or metal What are the advantages of MRI Correct Answer more anatomical detail good for nonspecific white matter lesions What does a CT scan look like (and CSF) Correct Answer thick bone hugs brain tissue CSF = black gray matter lighter than white matter What does MRI T1 look like (and CSF) Correct Answer wet brain gray = dark, white = light CSF is dark Bone is black What does MRI T2 look like (and CSF) Correct Answer looks like a negative CSF = bright white matter = dark grey Look at normal and abnormal tissue imaging charts Correct Answer ok What is the neuroanatomy for MS Correct Answer CNS What are common areas for MS lesions Correct Answer periventricular white matter corpus callosum optic nerves dorsal spinal cord cerebellum What is the etiology for MS Correct Answer autoimmune + demyelinating Explain how MS is an autoimmune degenerative disease Correct Answer T-cells cross BBB + attack myelin in CNS Sclerotic plague develops over time What is the disease course of MS Correct Answer insidious, episodic, progressive What are the types of MS Correct Answer Clinically isolated syndrome (CIS) Relapsing-remitting Secondary-progressive Primary progressive What is CIS (MS) Correct Answer 1st single episode of neuro symptoms, 24 hours, caused by inflammation and demyelination Risk of developing MS What is relapsing-remitting MS Correct Answer disease attack w/ subsequent recovery little/no neuro deficits btw attacks stepwise increase in neuro deficits over years 90% of patients (most common) What is secondary progressive MS Correct Answer relapsing + remitting MS attacks followed by INCOMPLETE recovery cumulative loss of function + disability conversion after 6-10 years 85-0% of pts w/ RRMS What is primary progressive MS Correct Answer slow, steady progress of neuro deficits sx usually spinal no obvious attacks, insidious progression