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  #1  
Old 03-06-2012
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Arrow NBME 2 Block 1 Discussion

@Avash.nrs
@stahlpaz

Man, this Form (or atleast this block) was MUCH harder than I expected. Talks of form 2 being the easiest really lowered my expectations for this but man it hit me hard in some places!

#5: explanation please
#6: i was between B and E, why is neither applicable here?
#9: i thought an STI is one of those 'must-report' scenarios?
#13: explanation please
#16: explanation please
#18: explanation please
#26: explanation please. I had selected D.
#28: whats the difference between A and D?
#30: explanation please
#37: explanation please
#44: explanation please
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  #2  
Old 03-06-2012
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absolutely..its billing is underestimated i think too
regarding qs..5..i think its paba esters bcoz of its structural resemblance most with methylparaben:P
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Old 03-06-2012
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in 6..i have no idea...i dont ever knew what was wrong with e...
in 9...b i think is the choice for me...bcoz when the wife asks husband about sexual experience outside marriage..we as doctors are also clean about not disclosing the fact as well as reporting pt's wife about stds...
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13 is transposition of great vessesls.. bcoz the septum which is spiral didnot develop properly giving this anamolous situation
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1 e..bocz the only clue i get(i cant remeber histology of gallbladder,sorry)..is that pain is acute and its acute cholecystitis..so neutrophils is the one to go:P
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18 is the worst of the lot..i have seen discussion in this forum regarding this..absolutely wtf qs..i will go with c..bcoz its the most open ended qs and not offensive to pt as well
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26 undoubtedly is biotin..its carboxylase...so biotin is the way to go..any carboxylase needs biotin
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Old 03-07-2012
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Originally Posted by avash.nrs View Post
absolutely..its billing is underestimated i think too
regarding qs..5..i think its paba esters bcoz of its structural resemblance most with methylparaben:P
#5: is that in FA? which page?
#13: what are the clues in the question that give away the diagnosis of transposition?
#26: is that in FA? which page?
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Old 03-09-2012
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13...yeah just locate the alignment of great vessels...and relate it the alignment given in the qs...and just think how spiral septum divides the truncus arteriosus..u surely will get it..as of 26..yes given in FA..in vitamin area..just see..and yup add another one beside the 3 names given..3 methylcrotonaldehyde carboxylase beside it...i added it from UWORLD
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block 1:24,30,32,35,37,38,43,44
block2:1,6,9,10,16,18,21,25,26,27,33,34,35,36,39,4 0
block 3:3,8,10,13,15,19,22,30,36,37,42,44,46,47
plz plz plz with expl:sorry::sorry::sorry:
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Old 03-09-2012
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Quote:
Originally Posted by avash.nrs View Post
block 1:24,30,32,35,37,38,43,44
block2:1,6,9,10,16,18,21,25,26,27,33,34,35,36,39,4 0
block 3:3,8,10,13,15,19,22,30,36,37,42,44,46,47
plz plz plz with expl:sorry::sorry::sorry:
ok im going to try doing this off of memory and not look at my answers, so correct me if im wrong on any of these.

block 1:

24: simply asking what is the most common type of urinary stone, answer is calcium.

30: ah man, i remember i put C and it was wrong. was the answer E? i dont know why, i never really learned this liver lobule stuff anywhere.

32: A. because conjugating it with a protein makes it easily distinguished as a foreign antigen, and who notices foreign antigens? Type 2 Helper T cells.

35: anytime you have bloody discharge from nipple, the answer is intraductal papilloma. it is the only one that can bleed because it is not a proliferation of the epithelial cells like the other intraductal tumors of the breast, but rather it is a pappillary structure (like a finger) that protrudes out from the lining of the duct. therefore it contains vessels in it and can rupture and bleed.

37: i remember i got this wrong. i put F. but the answer is ummm E right? hmm not really sure how.

38: D. misoprostol is a prostaglandin analogue, and as such will cause uterine contractions and can cause spontaneous abortions.

43: B? its a nephritic syndrome with no past illness (therefore, not poststrep) and no abnormalities of the kidney itself (no thickening of capillaries or immune-complex deposits on basement membrane that would be indicative of A, C or D). So all youre left with is B.

44: oh man, this was one of those WTF questions. i had guessed D. but somehow its B. i dont know how i would know that from what was provided in the question.
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  #12  
Old 03-09-2012
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Quote:
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13...yeah just locate the alignment of great vessels...and relate it the alignment given in the qs...and just think how spiral septum divides the truncus arteriosus..u surely will get it..
isn't the aorta always anterior and to the right of the pulmonary vessels? :S
seems like normal setup to me :/
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Originally Posted by avash.nrs View Post
as of 26..yes given in FA..in vitamin area..just see..and yup add another one beside the 3 names given..3 methylcrotonaldehyde carboxylase beside it...i added it from UWORLD
ok i see it
biochem is the only section of FA i havent read because I felt Kaplan biochem was so good to me, but it clearly let me down when it came to biotin "-_-
now i know i need to give FA biochem a read through lol
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regarding qs 44:i thought C..bcoz she is dry and hot and thus no sweat gland functioning..sweat glands are parashympathetic..but answer given is b!!
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in 30..i put hepatic veins bocz they connect portal and ivc and its a case of portal hypertension..i never guessed that portal vein obsrtuction will be causing this cirrhosis and portal hypertension!!!..BTW thanks a lot especially for breast answer..really thanks a lot
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in 28..i felt its d..bcoz in periphery cd8 tcells will be attacking but in lymph nodes more b cells coming to rescue so more b cells can e attacked...plus had a cervical lymphadenopathy..so proliferation must be in lymph node near that..pharynx is the nearest thats why..sounds perferctly lame but again i felt WTF!!!
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in 30..i put hepatic veins bocz they connect portal and ivc and its a case of portal hypertension..i never guessed that portal vein obsrtuction will be causing this cirrhosis and portal hypertension!!!..BTW thanks a lot especially for breast answer..really thanks a lot
no problem, pathoma explains breast amazingly well so its an easier topic for me now.

um can you explain 13 for me, as i said above, i thought the description in the question stem is normal. how is that transposition?

also, check the form 2 block 2 thread, we'll discuss block 2 there.
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Old 03-12-2012
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well its in FA..the aorta starts from right ventricle and is anterior to pulmonary trunk which lies behind starting from left ventricle
and in the lung graph..its the fev1/fvc curve..so i think its lung volume thats the determining fator thats why varaiation occurs in firosis and emphysema
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Old 03-12-2012
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well its in FA..the aorta starts from right ventricle and is anterior to pulmonary trunk which lies behind starting from left ventricle
and in the lung graph..its the fev1/fvc curve..so i think its lung volume thats the determining fator thats why varaiation occurs in firosis and emphysema
ok so normally the aorta is posterior to the pulmonary artery, got it, thanks

reach the block 2 discussion thread:
http://www.usmle-forums.com/usmle-st...iscussion.html
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Old 04-18-2012
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Can anybody explain Qno. 11?
Q19- why cant the case fatality rate of town A be twice as that of town B?
Q37-the graph?
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