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NBME 21 Answers

nbme21/Block 1/Question#16 (61.1 difficulty score)
A 43-year-old man comes to the physician for ...
AorticπŸ”
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 +36 
submitted by mcl(599),
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dleeaLb CRX ioswgnh pooitnsi fo irnffedet vesl.av

hyperfukus  this link is great! they're still kind of close together :( its so hard to tell for me w/o reference of the others +  
hyperfukus  this link is great! they're still kind of close together :( its so hard to tell for me w/o reference of the others +  
mannywillsee  So the way to differentiate Aortic valve from the others is by checking the lateral view, AV will be more medial than both tricuspid and mitral; tricuspid will be more anterior and mitral will be posterior while Pulmonary is doing its own thing +2  



 +17 
submitted by step1soon(48),
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/atveh/agltdiek:amrst/vyrhae-i/ylsroapou.sodc-le

ookL at erweh teh ssupc rea innogpit β†’ rpwsdau rhfetoeer ot.raic if sscpu reew dwrawond β†’ nthe ritmla veval oudlw be het rtghi naewsr

misterdoctor69  mitral valve would only have 2 cusps even if it were replaced though right?... +  
bbr  After staring at this for awhile, I wanted to elaborate on this to make it even clearer. The 3 areas that meet at a point would be the 3 cusps. These 3 flaps are going to get blown open. Means flow is from down to up. +3  



 +4 
submitted by kentuckyfan(43),
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tnoreah lkin I nodfu ufleplh




 +3 
submitted by suckitnbme(176),

I was stuck between mitral and aortic and went with aortic because the L ventricle looks enlarged, possibly hinting that the patient had aortic stenosis.

drzed  I went with aortic because it looks like the valve has three cusps, while the mitral valve should only have two. Incorrect logic? +2  



 +0 
submitted by nbaumgarten(0),

This may be wrong, but it also looks like he may have had aortic regurgitation before. You can see that his has Left Ventricular enlargement.