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Kaplan Qbank USMLE



Author8 Posts
  #1

which of the following vitamin deficiencies would lead in hemorrhagic diathesis ?

a. B1
b. niacin
c. Vit E
d. Vit D
e. B12
f. Niacin
g. B5

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determination...& passion

  #2

Vit C & Vit K ! :lol:

  #3

I agree 1000%....


but there is one more :!: :shock:

___________________
determination...& passion

  #4

I think vit D deficiency can produce hemorrhage by increasing the likelihood of pathological fractures (osteomalacia)

  #5

sad here is the answer :

Vit E decreases synthesis of vitamin K dependent coagulation factors
also potentiates warfarin effects

a possible scenario would be a man post MI is on warfarin and has hematochezia or melena whatever.. endoscopy everything normal --> what prbably cause ? taking vit E as an antioxiant (hemorrhagic diathesis)

___________________
determination...& passion

  #6

Most (including me) will reflexively think Vit C and Vit K.
So they are not on the list.
I thought of Vit D also since Ca is a clotting factor and a lot of times there is synergy with these 2. Then deep in the crevicesof my brain I toyed with menadione(VitaminE) Either way one should have been able to eliminate the entire B complex. This q and the choies are kind of H.Y. grin

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Smell the coffee! "Is That an Osler move??"

  #7

Yes, i thought of Vitamin E after I couldn't find Vit K and C on the list, because i remembered goljan mentioning this in his nutrition lecture.

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"Support bacteria, its the only culture some people got."

  #8

do u mean vitamin E toxicity or deficiency???I think its toxicity which you're looking for in Vit. E.







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