maverick
Surgery Resident
Topics: 146
Posts: 553
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1) a 12 yr old girl has ASD. what is the most common cause:
a) failure of formation of septum primum
b) failure of formation of septum secundum
c) incomplete adhesion between septum primum and secundum
qbank says c AND in kaplan lectures the guy taught us b. what r ur opinions
2) A man gets a injury to his neck/sup medistinum wrestling. Which structure is most likely to get injured
a) Esophagus
b) Trachea
c) Sup vena cava
etc
The qbank says that its trachea as it is more superficial to esophagus and sup vena cava. However, actually SVC is more superficial to trachea. so isnt qbank answer wrong
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" There comes a time when for every addition of knowldege you forget something that you knew before. It is of the highest importance, therefore,not to have useless facts elbowing out the uselful ones." - Arthur Conan Doyle
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| ssrpk
Forum Fanatic
Topics: 154
Posts: 2,819
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well qbank is'nt wrong!
for ASD....it's most commonly a fusion defect.....however in down's syndrome itr's the defect in formation of ostium primum and mixed atrial and ventricluiar defect!
in sup./mediastinum...vena cava is more superficil but but because of flexibility in the venous walls ....it is less likely to get torn away by trauma!
never pick up any vascular structure a/s with trauma among choices unless it is specifically mentioned abt conditions like marfan's or ehlers danlos syndrome.....!
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life is guud
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| maverick
Surgery Resident
Topics: 146
Posts: 553
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thanks dude
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" There comes a time when for every addition of knowldege you forget something that you knew before. It is of the highest importance, therefore,not to have useless facts elbowing out the uselful ones." - Arthur Conan Doyle
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| maverick
Surgery Resident
Topics: 146
Posts: 553
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another question:-
qbank says that insulin resistance is due to Antibodies blocking insulin from binding to its receptor. Kaplan physio says that insulin resistance due to downregulation of receptors due to chronically activated plasma insulin. Kaplan is contradicting itself!!!
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" There comes a time when for every addition of knowldege you forget something that you knew before. It is of the highest importance, therefore,not to have useless facts elbowing out the uselful ones." - Arthur Conan Doyle
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| boo
Forum Senior
Topics: 4
Posts: 49
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no qbank isnt contraindicating itself
u see type 1 : JUVENILLE DM : is caused by insulintis or antibodies
against bovine albumin wich cross reacts
pancreatic islet cells thus there is no
insulin pridued hence they are prone to
KETOSIS
type 2 : ADULT ONSET DM : is due to prolonged poor glycemic control
which causes down regulation of insulin
receptors thus pancreas does still
produces some insulin to avoid ketosis
but causes hyperosmolar coma
Hope this answers your doubt abut the ?
bye
GL
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| maverick
Surgery Resident
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Posts: 553
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well, insulin resistance is present in only Type 2 DM, and as u mentioned there r are no antibodies in type 2 DM, only in type 1
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" There comes a time when for every addition of knowldege you forget something that you knew before. It is of the highest importance, therefore,not to have useless facts elbowing out the uselful ones." - Arthur Conan Doyle
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| maverick
Surgery Resident
Topics: 146
Posts: 553
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another question: qbank says that edward's syndrome has hypotonia? doesnt edwards have hypertonia?
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" There comes a time when for every addition of knowldege you forget something that you knew before. It is of the highest importance, therefore,not to have useless facts elbowing out the uselful ones." - Arthur Conan Doyle
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| maverick
Surgery Resident
Topics: 146
Posts: 553
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another question: Patients with functioning pituitary adenomas are most likely to present with the following:
a) Acromegaly
b) Galactorrhea
etc
qbank says galactorrhea. Now prolactinoma is the commonest functioning pituitary adenomas while GH secreting adenoma is the 2nd commonest. however, galactorrhea is not present in males (ruling out 50% cases) coz they dont have sufficient terminal lobule (as mentioned by Goljan) so shouldnt acromegaly be more common than galactorrhea
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" There comes a time when for every addition of knowldege you forget something that you knew before. It is of the highest importance, therefore,not to have useless facts elbowing out the uselful ones." - Arthur Conan Doyle
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| maverick
Surgery Resident
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another question: qbank says that most commonly sq. cell cancer in oral cavity is on lower lips while Goljan and BRS say that tongue is most common followed by lower lip.
so whats correct?
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" There comes a time when for every addition of knowldege you forget something that you knew before. It is of the highest importance, therefore,not to have useless facts elbowing out the uselful ones." - Arthur Conan Doyle
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| maverick
Surgery Resident
Topics: 146
Posts: 553
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q- Examination of per smear demonstrates large no of target cells. Further work up would reveal:
a) Abnormal Hb synthesis
b) Cells that sickle when exposed to low oxygen tension
etc
according to qbank Target cells are seen in thalassemia, Hb C and liver disease, and not in sickle cell anemia - according to Goljan they r present in sickle cell also as it is a hemoglobinopathy
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" There comes a time when for every addition of knowldege you forget something that you knew before. It is of the highest importance, therefore,not to have useless facts elbowing out the uselful ones." - Arthur Conan Doyle
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