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Kaplan Qbank USMLE



Author13 Posts
  #1

Which vitamin is absent in colostrum ?

  #2

vit D

  #3

correct

  #4

i think it is K .. are you sure?? :oops:

  #5

i guess its Vitamin K thats deficient,thats why newly born are administered Vit.K injection.

  #6

Question was what vitamin is absent in colostrom. According to this site human colostorum contains twice as much vitamin K than mature human milk
http://www.health.state.mo.us/dnhs_pdfs/R_NPE_pdi...

  #7

no its vitamin D..Iam sure about it 101%

  #8

Yeah I was telling them its definetely not vit K as vit K is twice as much in colostrum grin

  #9

kaplan says breast milk lacks vit K and thats why in all instiutional deliveries babies are given vit k soon as the are born...
can you give the referance where you read that breast milk has twice the amt of vit k??

  #10

colostrum is the intial milk and when they just say human breast milk thats mature milk, there is a difference in their composition

  #11

My understanding is that newborns are deprived of vitamin K since Vit K is synthesized from the bacteria in intestines... and the newborns intestines are still sterile.

___________________
"I can do all things through Christ who gives me strength." - Phil. 4:13

  #12

:roll: ..good discussion....

  #13

Nice fight! Can I participate, too? grin

Okkkk, from what I have read in Dr. Goljan's High Yield Notes (he's the guy who has done some of the high yield books and used to teach for kaplan a few years back I think), he mentions that there are two vitamins that lack in breast milk: Vit D and Vit K. So both groups are right smiling face

Now, Vit K is synthesized by colonic unaerobic bacteria and that's why you give newborns Vit K injections...cuz it takes up to 5 days to produce the bacteria in the gut. By the way, according to Goljan, this concept was tested in the past. A 4 day old infant was breast fed by his mother and presents with bleeding. Cause of bleeding? Lack of Vit K in milk.
Must know that kid is in danger until day 5.

Here's also a nice correlation with Warfarin: It inhibits epoxide reductase, the enzyme that is used in the activation of Vit K. In the next step, gamma carboxylation is supposed to happen.

Peace y'all smiling face

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La vita e bella!







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