Sunday, November 20, 2011

449 - AIIMS NOVEMBER 2011 Mcqs with answers - part 21

101. Spondylolisthesis - which of these you would not do :
A. CT scan
C. lumbar region x-ray- AP view
D. lumbar region x-ray - lateral view

I personally think the answer is C. About the other options, CT scan generally gives axial sections of the spine, by which the anterior movement of one vertebra over other is difficult to assess. However, there is 3D imaging option in CT which helps us to image the spine in all the planes (coronal,sagittal etc) by which spondylolisthesis can be detected. The MRI is always the gold standard for any spine pathologies because of its varied techniques and varied planes of visualization. The lumbar spine lateral view X-ray gives us a very clear indication of the spondylolisthesis by easily demonstrating the anterior movement of one vertebral body over other and disturbing the anterior and posterior vertebral lines.AP lumbar region x-ray is the least useful of the options given below, because it is difficult to assess spondylolisthesis, when you are looking at the spine anteroposteriorly or posteroanteriorly. So the answer is C.

102.which is most effective in EDSS in multiple sclerosis?
a.interferon gamma
b.interferon beta
c.glatiramer acetate

103.Which of the following is indicated in prenatal lady with congenital adrenal hyperplasia ? a.fludrocortisone

104.T4 to T3 conversion is blocked by all except?
A. Propanolol
B. Propylthiouracil
C. Methimazole
D. Amiodarone

105.Which of the following has LEAST chance of progression to multiple sclerosis
A. Optic nerve involvement
B. Absence of oligoclonal antibodies in CSF
C. Truncal ataxia
D. Pyramidal involvement

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